21988891857231

Names of 21988891857231

• Cardinal: 21988891857231 can be written as Twenty-one trillion, nine hundred eighty-eight billion, eight hundred ninety-one million, eight hundred fifty-seven thousand, two hundred thirty-one.

Scientific notation

• Scientific notation: 2.1988891857231 × 10¹³

Factors of 21988891857231

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8118

Divisors of 21988891857231

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 13 19 39 57 117 171 247 741 829 2223 2487 2521 4733 7461 7563 10777 14199 15751 22689 32331 32773 42597 47253 47899 61529 89927 96993 98319 141759 143697 184587 204763 269781 294957 431091 553761 614289 622687 809343 1169051 1842867 1868061 2089909 3507153 3923657 5604183 6269727 10521459 11770971 11931893 18809181 27168817 35312913 35795679 39708271 51007541 74549483 81506451 107387037 119124813 153022623 155114609 223648449 226705967 244519353 357374439 459067869 465343827 516207523 670945347 680117901 969143279 1396031481 1548622569 2040353703 2907429837 2947177571 4645867707 8722289511 8841532713 9891539297 26524598139 29674617891 89023853673 128590010861 187939246643 385770032583 563817739929 1157310097749 1691453219787 2443210206359 7329630619077 21988891857231
• Sum of all divisors σ(n): 36070553937600
• Sum of proper divisors (its aliquot sum) s(n): 14081662080369
• 21988891857231 is a deficient number, because the sum of its proper divisors (14081662080369) is less than itself. Its deficiency is 7907229776862

Bases of 21988891857231

• Binary: 100111111111110110000000101101001000101001111₂
• Hexadecimal: 0x13FFB016914F
• Base-36: 7SLK2H45R

Squares and roots of 21988891857231

• 21988891857231 squared (21988891857231²) is 483511365108999776486987361
• 21988891857231 cubed (21988891857231³) is 10631879119123930227949715397123313457391
• The square root of 21988891857231 is 4689231.4783161433
• The cube root of 21988891857231 is 28015.6765348909

Scales and comparisons

• 21,988,891,857,231 seconds is equal to 699,178 years, 38 weeks, 5 days, 3 hours, 53 minutes, 51 seconds.
• To count from 1 to 21,988,891,857,231 would take you about one million, seven hundred forty-seven thousand, nine hundred forty-six 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 21988891857231 cubic inches would be around 2334.6 feet tall.

Recreational maths with 21988891857231

• 21988891857231 backwards is 13275819888912
• The number of decimal digits it has is: 14
• The sum of 21988891857231's digits is 72
• More coming soon!