21372432147

Names of 21372432147

• Cardinal: 21372432147 can be written as Twenty-one billion, three hundred seventy-two million, four hundred thirty-two thousand, one hundred forty-seven.

Scientific notation

• Scientific notation: 2.1372432147 × 10¹⁰

Factors of 21372432147

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 10933

Divisors of 21372432147

• Number of divisors d(n): 80
• Complete list of divisors:
  1 3 9 11 17 27 33 51 81 99 131 153 187 297 393 459 561 891 1179 1377 1441 1683 2227 3537 4323 5049 6681 10611 10771 12969 15147 20043 24497 32313 38907 60129 73491 96939 116721 118481 180387 183107 220473 290817 355443 549321 661419 872451 1066329 1411001 1647963 1984257 2014177 3198987 4233003 4943889 6042531 9596961 12699009 14831667 15521011 18127593 23987017 38097027 46563033 54382779 71961051 114291081 139689099 163148337 215883153 263857187 419067297 647649459 791571561 1257201891 1942948377 2374714683 7124144049 21372432147
• Sum of all divisors σ(n): 37162882944
• Sum of proper divisors (its aliquot sum) s(n): 15790450797
• 21372432147 is a deficient number, because the sum of its proper divisors (15790450797) is less than itself. Its deficiency is 5581981350

Bases of 21372432147

• Binary: 10011111001111001010110111100010011₂
• Hexadecimal: 0x4F9E56F13
• Base-36: 9TGLE6R

Squares and roots of 21372432147

• 21372432147 squared (21372432147²) is 456780855878119029609
• 21372432147 cubed (21372432147³) is 9762517848303685062307836440523
• The square root of 21372432147 is 146193.1330364051
• The cube root of 21372432147 is 2775.1384135489

Scales and comparisons

• 21,372,432,147 seconds is equal to 679 years, 30 weeks, 2 hours, 42 minutes, 27 seconds.
• To count from 1 to 21,372,432,147 would take you about one thousand, three hundred fifty-nine 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 21372432147 cubic inches would be around 231.3 feet tall.

Recreational maths with 21372432147

• 21372432147 backwards is 74123427312
• The number of decimal digits it has is: 11
• The sum of 21372432147's digits is 36
• More coming soon!