21502389272

Names of 21502389272

• Cardinal: 21502389272 can be written as Twenty-one billion, five hundred two million, three hundred eighty-nine thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 2.1502389272 × 10¹⁰

Factors of 21502389272

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5941

Divisors of 21502389272

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 7 8 13 14 26 28 37 52 56 74 91 104 139 148 182 259 278 296 364 481 518 556 728 962 973 1036 1112 1807 1924 1946 2072 3367 3614 3848 3892 5143 5743 6734 7228 7784 10286 11486 12649 13468 14456 20572 22972 25298 26936 36001 40201 41144 45944 50596 66859 72002 74659 80402 101192 133718 144004 149318 160804 212491 267436 288008 298636 321608 424982 468013 522613 534872 597272 798277 849964 936026 1045226 1487437 1596554 1699928 1872052 2090452 2762383 2974874 3193108 3744104 4180904 5524766 5587939 5949748 6386216 10377601 11049532 11175878 11899496 19336681 20755202 22099064 22351756 29536249 38673362 41510404 44703512 59072498 72643207 77346724 83020808 118144996 145286414 154693448 206753743 236289992 290572828 383971237 413507486 581145656 767942474 827014972 1535884948 1654029944 2687798659 3071769896 5375597318 10751194636 21502389272
• Sum of all divisors σ(n): 51337574400
• Sum of proper divisors (its aliquot sum) s(n): 29835185128
• 21502389272 is an abundant number, because the sum of its proper divisors (29835185128) is greater than itself. Its abundance is 8332795856

Bases of 21502389272

• Binary: 10100000001101001000110110000011000₂
• Hexadecimal: 0x501A46C18
• Base-36: 9VLYTQW

Squares and roots of 21502389272

• 21502389272 squared (21502389272²) is 462352744404620689984
• 21502389272 cubed (21502389272³) is 9941688691165673951541199451648
• The square root of 21502389272 is 146636.9301097101
• The cube root of 21502389272 is 2780.7518829573

Scales and comparisons

• 21,502,389,272 seconds is equal to 683 years, 36 weeks, 6 days, 5 hours, 54 minutes, 32 seconds.
• To count from 1 to 21,502,389,272 would take you about one thousand, three hundred sixty-seven years!

  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 21502389272 cubic inches would be around 231.7 feet tall.

Recreational maths with 21502389272

• 21502389272 backwards is 27298320512
• The number of decimal digits it has is: 11
• The sum of 21502389272's digits is 41
• More coming soon!