21901318515672

Names of 21901318515672

• Cardinal: 21901318515672 can be written as Twenty-one trillion, nine hundred one billion, three hundred eighteen million, five hundred fifteen thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.1901318515672 × 10¹³

Factors of 21901318515672

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 26612788

Divisors of 21901318515672

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 12 24 53 106 159 212 318 424 636 647 1272 1294 1941 2588 3882 5176 7764 15528 34291 68582 102873 137164 205746 274328 411492 822984 26612083 53224166 79836249 106448332 159672498 212896664 319344996 638689992 1410440399 2820880798 4231321197 5641761596 8462642394 11283523192 16925284788 17218017701 33850569576 34436035402 51654053103 68872070804 103308106206 137744141608 206616212412 413232424824 912554938153 1825109876306 2737664814459 3650219752612 5475329628918 7300439505224 10950659257836 21901318515672
• Sum of all divisors σ(n): 55872602599680
• Sum of proper divisors (its aliquot sum) s(n): 33971284084008
• 21901318515672 is an abundant number, because the sum of its proper divisors (33971284084008) is greater than itself. Its abundance is 12069965568336

Bases of 21901318515672

• Binary: 100111110101101001100010011110110101111011000₂
• Hexadecimal: 0x13EB4C4F6BD8
• Base-36: 7RHBRKHCO

Squares and roots of 21901318515672

• 21901318515672 squared (21901318515672²) is 479667752724917177309611584
• 21901318515672 cubed (21901318515672³) is 10505356234125007007083678415269736744448
• The square root of 21901318515672 is 4679884.4553762223
• The cube root of 21901318515672 is 27978.4351454475

Scales and comparisons

• 21,901,318,515,672 seconds is equal to 696,394 years, 9 weeks, 3 days, 19 hours, 41 minutes, 12 seconds.
• To count from 1 to 21,901,318,515,672 would take you about one million, seven hundred forty thousand, nine hundred eighty-five 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 21901318515672 cubic inches would be around 2331.5 feet tall.

Recreational maths with 21901318515672

• 21901318515672 backwards is 27651581310912
• The number of decimal digits it has is: 14
• The sum of 21901318515672's digits is 51
• More coming soon!