Supriya Ghosh (Editor)

30000 (number)

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← 29999
  
30000

Cardinal
  
thirty thousand

Roman numeral
  
XXX

30000
  
30001 →

Factorization
  
2× 3 × 5

Ordinal
  
30000th (thirty thousandth)

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

Selected numbers in the range 30000–39999

  • 30000 – round number
  • 30029 – primorial prime
  • 30030 – primorial
  • 30203 – safe prime
  • 30240 – harmonic divisor number
  • 30323 – Sophie Germain prime and safe prime
  • 30420 – pentagonal pyramidal number
  • 30694 – open meandric number
  • 30941 – first base 13 repunit prime
  • 31116 – octahedral number
  • 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
  • 31721 – start of a prime quadruplet
  • 31929 – Zeisel number
  • 32043 – smallest number whose square is pandigital.
  • 32045 – can be expressed as a sum of two squares in more ways than any smaller number
  • 32760 – harmonic divisor number
  • 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
  • 32993 – Leyland number
  • 33461 – Pell number, Markov number
  • 33511 – square pyramidal number
  • 33781 – octahedral number
  • 34560 – 5 superfactorial
  • 34841 – start of a prime quadruplet
  • 34969 – favorite number of the Muppet character Count von Count
  • 35720 – square pyramidal number
  • 35840 – number of ounces in a long ton (2,240 pounds)
  • 35890 – tribonacci number
  • 35899 – alternating factorial
  • 35937 – 333, chiliagonal number
  • 35964 – digit-reassembly number
  • 36100 – sum of the cubes of the first 19 positive integers
  • 36594 – octahedral number
  • 37378 – semi-meandric number
  • 37666 – Markov number
  • 37926 – pentagonal pyramidal number
  • 38024 – square pyramidal number
  • 38416 – 144
  • 38962 – Kaprekar number
  • 39304 – 343
  • 39559 – octahedral number
  • 39648 – tetranacci number

    • References

    30000 (number) Wikipedia
    (Text) CC BY-SA