21321061542

Names of 21321061542

• Cardinal: 21321061542 can be written as Twenty-one billion, three hundred twenty-one million, sixty-one thousand, five hundred forty-two.

Scientific notation

• Scientific notation: 2.1321061542 × 10¹⁰

Factors of 21321061542

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1169

Divisors of 21321061542

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 3 6 9 11 18 22 27 33 54 66 81 99 162 198 243 297 486 594 729 891 1153 1458 1782 2306 2673 3459 5346 6918 8019 10377 12683 16038 20754 25366 31131 38049 62262 76098 93393 114147 186786 228294 280179 342441 560358 684882 840537 1027323 1329409 1681074 2054646 2658818 3081969 3988227 6163938 7976454 9245907 11964681 14623499 18491814 23929362 29246998 35894043 43870497 71788086 87740994 107682129 131611491 215364258 263222982 323046387 394834473 646092774 789668946 969139161 1184503419 1938278322 2369006838 3553510257 7107020514 10660530771 21321061542
• Sum of all divisors σ(n): 52354992924
• Sum of proper divisors (its aliquot sum) s(n): 31033931382
• 21321061542 is an abundant number, because the sum of its proper divisors (31033931382) is greater than itself. Its abundance is 9712869840

Bases of 21321061542

• Binary: 10011110110110101011001010010100110₂
• Hexadecimal: 0x4F6D594A6
• Base-36: 9SM0CDI

Squares and roots of 21321061542

• 21321061542 squared (21321061542²) is 454587665277751417764
• 21321061542 cubed (21321061542³) is 9692291587621034501523996032088
• The square root of 21321061542 is 146017.3330190633
• The cube root of 21321061542 is 2772.9131963443

Scales and comparisons

• 21,321,061,542 seconds is equal to 677 years, 49 weeks, 13 hours, 5 minutes, 42 seconds.
• To count from 1 to 21,321,061,542 would take you about one thousand, three hundred fifty-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 21321061542 cubic inches would be around 231.1 feet tall.

Recreational maths with 21321061542

• 21321061542 backwards is 24516012312
• 21321061542 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21321061542's digits is 27
• More coming soon!