12988998

Names of 12988998

• Cardinal: 12988998 can be written as Twelve million, nine hundred eighty-eight thousand, nine hundred ninety-eight.

Scientific notation

• Scientific notation: 1.2988998 × 10⁷

Factors of 12988998

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 250

Divisors of 12988998

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 6 9 11 18 22 27 33 37 54 66 74 81 99 111 162 197 198 222 297 333 394 407 591 594 666 814 891 999 1182 1221 1773 1782 1998 2167 2442 2997 3546 3663 4334 5319 5994 6501 7289 7326 10638 10989 13002 14578 15957 19503 21867 21978 31914 32967 39006 43734 58509 65601 65934 80179 117018 131202 160358 175527 196803 240537 351054 393606 481074 590409 721611 1180818 1443222 2164833 4329666 6494499 12988998
• Sum of all divisors σ(n): 32774544
• Sum of proper divisors (its aliquot sum) s(n): 19785546
• 12988998 is an abundant number, because the sum of its proper divisors (19785546) is greater than itself. Its abundance is 6796548

Bases of 12988998

• Binary: 110001100011001001000110₂
• Hexadecimal: 0xC63246
• Base-36: 7QEDI

Squares and roots of 12988998

• 12988998 squared (12988998²) is 168714069044004
• 12988998 cubed (12988998³) is 2191426705384429867992
• The square root of 12988998 is 3604.0252496341
• The cube root of 12988998 is 235.0671182965

Scales and comparisons

• 12,988,998 seconds is equal to 21 weeks, 3 days, 8 hours, 3 minutes, 18 seconds.
• To count from 1 to 12,988,998 would take you about thirty-two weeks!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 12988998 cubic inches would be around 19.6 feet tall.

Recreational maths with 12988998

• 12988998 backwards is 89988921
• 12988998 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12988998's digits is 54
• More coming soon!