21365820432

Names of 21365820432

• Cardinal: 21365820432 can be written as Twenty-one billion, three hundred sixty-five million, eight hundred twenty thousand, four hundred thirty-two.

Scientific notation

• Scientific notation: 2.1365820432 × 10¹⁰

Factors of 21365820432

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 90692

Divisors of 21365820432

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 33 36 44 48 66 72 88 99 132 144 149 176 198 264 298 396 447 528 596 792 894 1192 1341 1584 1639 1788 2384 2682 3278 3576 4917 5364 6556 7152 9834 10728 13112 14751 19668 21456 26224 29502 39336 59004 78672 90527 118008 181054 236016 271581 362108 543162 724216 814743 995797 1086324 1448432 1629486 1991594 2172648 2987391 3258972 3983188 4345296 5974782 6517944 7966376 8962173 11949564 13035888 13488523 15932752 17924346 23899128 26977046 35848692 40465569 47798256 53954092 71697384 80931138 107908184 121396707 143394768 148373753 161862276 215816368 242793414 296747506 323724552 445121259 485586828 593495012 647449104 890242518 971173656 1186990024 1335363777 1780485036 1942347312 2373980048 2670727554 3560970072 5341455108 7121940144 10682910216 21365820432
• Sum of all divisors σ(n): 65669011200
• Sum of proper divisors (its aliquot sum) s(n): 44303190768
• 21365820432 is an abundant number, because the sum of its proper divisors (44303190768) is greater than itself. Its abundance is 22937370336

Bases of 21365820432

• Binary: 10011111001100000001000110000010000₂
• Hexadecimal: 0x4F9808C10
• Base-36: 9TCNOK0

Squares and roots of 21365820432

• 21365820432 squared (21365820432²) is 456498282732468666624
• 21365820432 cubed (21365820432³) is 9753460336378291827154855661568
• The square root of 21365820432 is 146170.5183407379
• The cube root of 21365820432 is 2774.8522143843

Scales and comparisons

• 21,365,820,432 seconds is equal to 679 years, 19 weeks, 14 hours, 7 minutes, 12 seconds.
• To count from 1 to 21,365,820,432 would take you about one thousand, three hundred fifty-eight 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 21365820432 cubic inches would be around 231.2 feet tall.

Recreational maths with 21365820432

• 21365820432 backwards is 23402856312
• 21365820432 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21365820432's digits is 36
• More coming soon!