87316381971

Names of 87316381971

• Cardinal: 87316381971 can be written as Eighty-seven billion, three hundred sixteen million, three hundred eighty-one thousand, nine hundred seventy-one.

Scientific notation

• Scientific notation: 8.7316381971 × 10¹⁰

Factors of 87316381971

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2938

Divisors of 87316381971

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 13 17 21 27 39 49 51 63 91 107 117 119 147 153 189 221 273 321 351 357 441 459 637 663 749 819 833 963 1071 1323 1391 1547 1819 1911 1989 2247 2457 2499 2791 2889 3213 4173 4641 5243 5457 5733 5967 6741 7497 8373 9737 10829 12519 12733 13923 15729 16371 17199 19537 20223 22491 23647 25119 29211 32487 36283 37557 38199 41769 47187 47447 49113 58611 68159 70941 75357 87633 89131 97461 108849 114597 136759 141561 142341 165529 175833 204477 212823 253981 262899 267393 292383 298637 326547 332129 343791 410277 427023 496587 527499 613431 616811 638469 761943 802179 895911 979641 996387 1158703 1230831 1281069 1489761 1777867 1840293 1850433 2090459 2285829 2324903 2406537 2687733 2989161 3476109 3692493 3882281 4317677 4469283 5076829 5333601 5551299 6271377 6857487 6974709 8063199 8967483 10428327 11646843 12953031 14633213 15230487 16000803 16653897 18814131 20924127 27175967 30223739 31284981 34940529 35537803 38859093 43899639 45691461 48002409 56442393 62772381 65998777 81527901 90671217 104821587 106613409 116577279 131698917 137074383 190231769 197996331 244583703 248764621 272013651 319840227 395096751 461991439 570695307 593988993 733751109 746293863 816040953 959520681 1385974317 1712085921 1781966979 2238881589 3233940073 4157922951 5136257763 6716644767 9701820219 12473768853 29105460657 87316381971
• Sum of all divisors σ(n): 173250524160
• Sum of proper divisors (its aliquot sum) s(n): 85934142189
• 87316381971 is a deficient number, because the sum of its proper divisors (85934142189) is less than itself. Its deficiency is 1382239782

Bases of 87316381971

• Binary: 1010001010100011101100100000100010011₂
• Hexadecimal: 0x1454764113
• Base-36: 1441X3IR

Squares and roots of 87316381971

• 87316381971 squared (87316381971²) is 7624150560505573844841
• 87316381971 cubed (87316381971³) is 665713242545518432710683843761611
• The square root of 87316381971 is 295493.4550391937
• The cube root of 87316381971 is 4436.4124018835

Scales and comparisons

• 87,316,381,971 seconds is equal to 2,776 years, 20 weeks, 2 days, 6 hours, 32 minutes, 51 seconds.
• To count from 1 to 87,316,381,971 would take you about five thousand, five hundred fifty-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 87316381971 cubic inches would be around 369.7 feet tall.

Recreational maths with 87316381971

• 87316381971 backwards is 17918361378
• The number of decimal digits it has is: 11
• The sum of 87316381971's digits is 54
• More coming soon!