72709526421

Names of 72709526421

• Cardinal: 72709526421 can be written as Seventy-two billion, seven hundred nine million, five hundred twenty-six thousand, four hundred twenty-one.

Scientific notation

• Scientific notation: 7.2709526421 × 10¹⁰

Factors of 72709526421

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1414

Divisors of 72709526421

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 9 21 27 29 53 63 87 159 189 203 229 261 371 477 609 687 783 1093 1113 1431 1537 1603 1827 2061 3279 3339 4611 4809 5481 6183 6641 7651 9837 10017 10759 12137 13833 14427 19923 22953 29511 31697 32277 36411 41499 43281 46487 57929 59769 68859 84959 95091 96831 109233 139461 173787 179307 206577 221879 250297 254877 285273 290493 327699 351973 405503 418383 521361 665637 750891 764631 855819 1055919 1216509 1255149 1564083 1679941 1752079 1996911 2252673 2293893 2463811 3167757 3649527 5039823 5256237 5990733 6758019 7258613 7391433 9503271 10948581 11759587 13265741 15119469 15768711 21775839 22174299 35278761 39797223 45358407 47306133 50810291 65327517 66522897 92860187 105836283 119391669 152430873 195982551 278580561 317508849 358175007 384706489 457292619 835741683 1154119467 1371877857 2507225049 2692945423 3462358401 8078836269 10387075203 24236508807 72709526421
• Sum of all divisors σ(n): 130439808000
• Sum of proper divisors (its aliquot sum) s(n): 57730281579
• 72709526421 is a deficient number, because the sum of its proper divisors (57730281579) is less than itself. Its deficiency is 14979244842

Bases of 72709526421

• Binary: 1000011101101110100110101001110010101₂
• Hexadecimal: 0x10EDD35395
• Base-36: XEHDHN9

Squares and roots of 72709526421

• 72709526421 squared (72709526421²) is 5286675232366097069241
• 72709526421 cubed (72709526421³) is 384391652486969049200629155916461
• The square root of 72709526421 is 269647.0404454683
• The cube root of 72709526421 is 4173.7885051853

Scales and comparisons

• 72,709,526,421 seconds is equal to 2,311 years, 48 weeks, 5 days, 10 hours, 40 minutes, 21 seconds.
• To count from 1 to 72,709,526,421 would take you about four thousand, six hundred twenty-three 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 72709526421 cubic inches would be around 347.8 feet tall.

Recreational maths with 72709526421

• 72709526421 backwards is 12462590727
• The number of decimal digits it has is: 11
• The sum of 72709526421's digits is 45
• More coming soon!