21643472952

Names of 21643472952

• Cardinal: 21643472952 can be written as Twenty-one billion, six hundred forty-three million, four hundred seventy-two thousand, nine hundred fifty-two.

Scientific notation

• Scientific notation: 2.1643472952 × 10¹⁰

Factors of 21643472952

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4927997

Divisors of 21643472952

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 36 61 72 122 183 244 366 488 549 732 1098 1464 2196 4392 4927931 9855862 14783793 19711724 29567586 39423448 44351379 59135172 88702758 118270344 177405516 300603791 354811032 601207582 901811373 1202415164 1803622746 2404830328 2705434119 3607245492 5410868238 7214490984 10821736476 21643472952
• Sum of all divisors σ(n): 59578697880
• Sum of proper divisors (its aliquot sum) s(n): 37935224928
• 21643472952 is an abundant number, because the sum of its proper divisors (37935224928) is greater than itself. Its abundance is 16291751976

Bases of 21643472952

• Binary: 10100001010000011010011000000111000₂
• Hexadecimal: 0x50A0D3038
• Base-36: 9XXYQM0

Squares and roots of 21643472952

• 21643472952 squared (21643472952²) is 468439921423955594304
• 21643472952 cubed (21643472952³) is 10138666768976388230167709265408
• The square root of 21643472952 is 147117.2082116841
• The cube root of 21643472952 is 2786.8204144953

Scales and comparisons

• 21,643,472,952 seconds is equal to 688 years, 10 weeks, 1 day, 3 hours, 49 minutes, 12 seconds.
• To count from 1 to 21,643,472,952 would take you about one thousand, three hundred seventy-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 21643472952 cubic inches would be around 232.2 feet tall.

Recreational maths with 21643472952

• 21643472952 backwards is 25927434612
• The number of decimal digits it has is: 11
• The sum of 21643472952's digits is 45
• More coming soon!