30,000

30,000 (thirty thousand) is the natural number that comes after 29,999 and before 30,001.

← 29999 30000 30001 →
List of numbers — Integers ← 0 [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]]
Cardinal	thirty thousand
Ordinal	30000th (thirty thousandth)
Factorization	2^4 × 3 × 5^4
Greek numeral	${\displaystyle {\stackrel {\gamma }{\mathrm {M} }}}$
Roman numeral	XXX
Binary	1110101001100002
Ternary	11120110103
Octal	724608
Duodecimal	1544012
Hexadecimal	753016

Selected numbers in the range 30001–39999

30001 to 30999

• 30029 – primorial prime
• 30030 – primorial[1]
• 30203 – safe prime
• 30240 – harmonic divisor number[2]
• 30323 – Sophie Germain prime and safe prime
• 30420 – pentagonal pyramidal number[3]
• 30694 – open meandric number
• 30941 – first base 13 repunit prime

31000 to 31999

• 31116 – octahedral number[4]
• 31337 – cousin prime, pronounced elite, an alternate way to spell 1337, an obfuscated alphabet made with numbers and punctuation, known and used in the gamer, hacker and BBS cultures.
• 31395 – square pyramidal number
• 31397 – prime number followed by a record prime gap of 72, the first above 52[5]
• 31721 – start of a prime quadruplet[6]
• 31929 – Zeisel number[7]

32000 to 32999

• 32043 – smallest number whose square is pandigital.
• 32045 – can be expressed as a sum of two squares in more ways than any smaller number[8]
• 32760 – harmonic divisor number[2]
• 32761 – 181², centered hexagonal number
• 32767 – 2¹⁵ − 1, largest positive value for a signed (two's complement) 16-bit integer on a computer.
• 32768 – 2¹⁵, maximum absolute value of a negative value for a signed (two's complement) 16-bit integer on a computer.
• 32800 – pentagonal pyramidal number[3]
• 32993 – Leyland number[9]

33000 to 33999

• 33333 – repdigit
• 33461 – Pell number,[10] Markov number[11]
• 33511 – square pyramidal number
• 33781 – octahedral number[4]

34000 to 34999

• 34560 – 5 superfactorial[12]
• 34841 – start of a prime quadruplet[6]
• 34969 – favorite number of the Muppet character Count von Count [13]

35000 to 35999

• 35720 – square pyramidal number
• 35840 – number of ounces in a long ton (2,240 pounds)
• 35890 – tribonacci number[14]
• 35899 – alternating factorial[15]
• 35937 – 33³, chiliagonal number[16]
• 35964 – digit-reassembly number

36000 to 36999

• 36100 – sum of the cubes of the first 19 positive integers
• 36594 – octahedral number[4]

37000 to 37999

• 37378 – semi-meandric number[17]
• 37634 – third term of the Lucas–Lehmer sequence
• 37666 – Markov number[11]
• 37926 – pentagonal pyramidal number[3]

38000 to 38999

• 38024 – square pyramidal number
• 38416 – 14⁴
• 38962 – Kaprekar number[18]

39000 to 39999

• 39304 – 34³
• 39559 – octahedral number[4]
• 39648 – tetranacci n[19]

References

1. "Sloane's A002110 : Primorial numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
2. "Sloane's A001599 : Harmonic or Ore numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
3. "Sloane's A002411 : Pentagonal pyramidal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
4. "Sloane's A005900 : Octahedral numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
5. Weisstein, Eric W. "Prime Gaps". MathWorld.
6. Sloane, N. J. A. (ed.). "Sequence A007530". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
7. "Sloane's A051015 : Zeisel numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
8. Sloane, N. J. A. (ed.). "Sequence A088959". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
9. "Sloane's A076980 : Leyland numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
10. "Sloane's A000129 : Pell numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
11. "Sloane's A002559 : Markoff (or Markov) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
12. "Sloane's A000178 : Superfactorials". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
13. "Why was 34,969 Count von Count's magic number?". BBC News. 2012-08-30. Retrieved 2012-08-31.
14. "Sloane's A000073 : Tribonacci numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
15. "Sloane's A005165 : Alternating factorials". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
16. "Sloane's A195163 : 1000-gonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
17. "Sloane's A000682 : Semimeanders". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
18. "Sloane's A006886 : Kaprekar numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
19. "Sloane's A000078 : Tetranacci numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.