21423681078

Names of 21423681078

• Cardinal: 21423681078 can be written as Twenty-one billion, four hundred twenty-three million, six hundred eighty-one thousand and seventy-eight.

Scientific notation

• Scientific notation: 2.1423681078 × 10¹⁰

Factors of 21423681078

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1434

Divisors of 21423681078

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 17 19 34 38 51 57 67 102 114 134 139 201 278 323 402 417 646 834 969 1139 1187 1273 1938 2278 2363 2374 2546 2641 3417 3561 3819 4726 5282 6834 7089 7122 7638 7923 9313 14178 15846 18626 20179 21641 22553 27939 40358 43282 44897 45106 55878 60537 64923 67659 79529 89794 121074 129846 134691 135318 158321 159058 164993 176947 238587 269382 316642 329986 353894 383401 474963 477174 494979 530841 766802 949926 989958 1061682 1150203 1351993 1511051 2300406 2703986 2804881 3008099 3022102 3134867 4055979 4533153 5609762 6016198 6269734 8111958 8414643 9024297 9066306 9404601 11054531 16829286 18048594 18809202 22109062 25687867 33163593 51375734 53292739 66327186 77063601 106585478 154127202 159878217 187927027 210036089 319756434 375854054 420072178 563781081 630108267 1127562162 1260216534 3570613513 7141227026 10711840539 21423681078
• Sum of all divisors σ(n): 48858163200
• Sum of proper divisors (its aliquot sum) s(n): 27434482122
• 21423681078 is an abundant number, because the sum of its proper divisors (27434482122) is greater than itself. Its abundance is 6010801044

Bases of 21423681078

• Binary: 10011111100111100110110111000110110₂
• Hexadecimal: 0x4FCF36E36
• Base-36: 9UB3U46

Squares and roots of 21423681078

• 21423681078 squared (21423681078²) is 458974110931855242084
• 21423681078 cubed (21423681078³) is 9832914975662660097270100086552
• The square root of 21423681078 is 146368.3062619773
• The cube root of 21423681078 is 2777.3548100201

Scales and comparisons

• 21,423,681,078 seconds is equal to 681 years, 10 weeks, 5 days, 6 hours, 31 minutes, 18 seconds.
• To count from 1 to 21,423,681,078 would take you about one thousand, three hundred sixty-two 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 21423681078 cubic inches would be around 231.4 feet tall.

Recreational maths with 21423681078

• 21423681078 backwards is 87018632412
• The number of decimal digits it has is: 11
• The sum of 21423681078's digits is 42
• More coming soon!