869727991513221

Names of 869727991513221

• Cardinal: 869727991513221 can be written as Eight hundred sixty-nine trillion, seven hundred twenty-seven billion, nine hundred ninety-one million, five hundred thirteen thousand, two hundred twenty-one.

Scientific notation

• Scientific notation: 8.69727991513221 × 10¹⁴

Factors of 869727991513221

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8686

Divisors of 869727991513221

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 9 17 27 51 153 157 459 471 997 1413 2341 2669 2991 4239 5171 7023 8007 8973 15513 16949 21069 24021 26919 39797 46539 50847 63207 72063 87907 119391 139617 152541 156529 263721 358173 367537 457623 469587 791163 811847 1074519 1102611 1408761 2333977 2373489 2435541 2660993 3307833 4226283 5155487 6248129 7001931 7306623 7982979 9923499 12105311 13801399 15466461 18744387 21005793 21919869 23948937 36315933 39677609 41404197 46399383 56233161 63017379 71846811 87643279 108947799 119032827 124212591 139198149 168699483 205790287 262929837 326843397 357098481 366434389 372637773 617370861 788789511 809411459 1071295443 1099303167 1852112583 1900533827 2366368533 2428234377 3297909501 5556337749 5701601481 6229384613 7284703131 9893728503 12068995067 13759994803 17104804443 18688153839 21854109393 32309075059 36206985201 41279984409 51314413329 56064461517 96927225177 108620955603 123839953227 168193384551 205172916139 290781675531 325862866809 371519859681 615518748417 872345026593 1846556245251 1894832225519 5539668735753 5684496676557 17053490029671 32212147833823 51160470089013 96636443501469 289909330504407 869727991513221
• Sum of all divisors σ(n): 1375198948523520
• Sum of proper divisors (its aliquot sum) s(n): 505470957010299
• 869727991513221 is a deficient number, because the sum of its proper divisors (505470957010299) is less than itself. Its deficiency is 364257034502922

Bases of 869727991513221

• Binary: 11000101110000001101010011111111000100000010000101₂
• Hexadecimal: 0x3170353FC4085
• Base-36: 8KAJIUFON9

Squares and roots of 869727991513221

• 869727991513221 squared (869727991513221²) is 756426779221621419801417794841
• 869727991513221 cubed (869727991513221³) is 657885543419235449265354484350616536517092861
• The square root of 869727991513221 is 29491151.0713505553
• The cube root of 869727991513221 is 95454.0770046163

Scales and comparisons

• 869,727,991,513,221 seconds is equal to 27,654,659 years, 46 weeks, 1 hour, 40 minutes, 21 seconds.
• To count from 1 to 869,727,991,513,221 would take you about sixty-nine million, one hundred thirty-six thousand, six hundred forty-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 869727991513221 cubic inches would be around 7954.5 feet tall.

Recreational maths with 869727991513221

• 869727991513221 backwards is 122315199727968
• The number of decimal digits it has is: 15
• The sum of 869727991513221's digits is 72
• More coming soon!