72945352389

Names of 72945352389

• Cardinal: 72945352389 can be written as Seventy-two billion, nine hundred forty-five million, three hundred fifty-two thousand, three hundred eighty-nine.

Scientific notation

• Scientific notation: 7.2945352389 × 10¹⁰

Factors of 72945352389

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 252

Divisors of 72945352389

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 13 21 39 49 61 79 89 91 147 183 237 267 273 427 553 623 637 793 1027 1157 1281 1659 1869 1911 2379 2989 3081 3471 3871 4361 4819 5429 5551 7031 7189 7921 8099 8967 11613 13083 14457 16287 16653 21093 21567 23763 24297 33733 38003 38857 49217 50323 55447 56693 62647 70577 91403 101199 102973 114009 116571 147651 150969 166341 170079 187941 211731 236131 266021 274209 308919 344519 388129 428891 438529 483181 494039 625759 639821 708393 720811 798063 1033557 1164387 1286673 1315587 1449543 1482117 1877277 1919463 2162433 3002237 3069703 3382267 3458273 4380313 4478747 5045677 5575583 6281353 8134867 9006711 9209109 10146801 10374819 13140939 13436241 15137031 16726749 18844059 21015659 23675869 24404601 30662191 38171299 39029081 43969471 56944069 63046977 71027607 91986573 114513897 117087243 131908413 170832207 267199093 273203567 307786297 398608483 496226887 801597279 819610701 923358891 1195825449 1488680661 1870393651 3473588209 5611180953 10420764627 24315117463 72945352389
• Sum of all divisors σ(n): 126832715520
• Sum of proper divisors (its aliquot sum) s(n): 53887363131
• 72945352389 is a deficient number, because the sum of its proper divisors (53887363131) is less than itself. Its deficiency is 19057989258

Bases of 72945352389

• Binary: 1000011111011111000011011111011000101₂
• Hexadecimal: 0x10FBE1BEC5
• Base-36: XIDS24L

Squares and roots of 72945352389

• 72945352389 squared (72945352389²) is 5321024435155388007321
• 72945352389 cubed (72945352389³) is 388144002492889458166054856839869
• The square root of 72945352389 is 270083.9728473349
• The cube root of 72945352389 is 4178.2960552063

Scales and comparisons

• 72,945,352,389 seconds is equal to 2,319 years, 22 weeks, 4 days, 21 hours, 53 minutes, 9 seconds.
• To count from 1 to 72,945,352,389 would take you about four thousand, six hundred thirty-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 72945352389 cubic inches would be around 348.2 feet tall.

Recreational maths with 72945352389

• 72945352389 backwards is 98325354927
• The number of decimal digits it has is: 11
• The sum of 72945352389's digits is 57
• More coming soon!