21640331339991

Names of 21640331339991

• Cardinal: 21640331339991 can be written as Twenty-one trillion, six hundred forty billion, three hundred thirty-one million, three hundred thirty-nine thousand, nine hundred ninety-one.

Scientific notation

• Scientific notation: 2.1640331339991 × 10¹³

Factors of 21640331339991

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 916084

Divisors of 21640331339991

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 7 9 13 21 27 39 59 63 91 117 163 177 189 273 351 413 489 531 767 819 1141 1239 1467 1593 2119 2301 2457 3423 3717 4401 5369 6357 6903 9617 10269 11151 14833 16107 19071 20709 28851 30807 44499 48321 57213 67319 86553 125021 133497 144963 201957 259659 375063 400491 605871 875147 915839 1125189 1817613 2625441 2747517 3375567 6410873 7876323 8242551 11905907 19232619 23628969 24727653 35717721 54034501 57697857 83341349 107153163 149281757 162103503 173093571 250024047 321459489 378241507 447845271 486310509 702448513 750072141 1044972299 1134724521 1343535813 1458931527 1940662841 2107345539 2250216423 3134916897 3404173563 4030607439 4917139591 5821988523 6322036617 8807623663 9404750691 10212520689 13584639887 14751418773 17465965569 18966109851 26422870989 28214252073 40753919661 44254256319 52397896707 61653365641 79268612967 114499107619 122261758983 132762768957 184960096923 237805838901 343497322857 366785276949 554880290769 801493753333 1030491968571 1664640872307 2404481259999 3091475905713 7213443779997 21640331339991
• Sum of all divisors σ(n): 40373157888000
• Sum of proper divisors (its aliquot sum) s(n): 18732826548009
• 21640331339991 is a deficient number, because the sum of its proper divisors (18732826548009) is less than itself. Its deficiency is 2907504791982

Bases of 21640331339991

• Binary: 100111010111010001000010000110010100011010111₂
• Hexadecimal: 0x13AE884328D7
• Base-36: 7O5FIJJRR

Squares and roots of 21640331339991

• 21640331339991 squared (21640331339991²) is 468303940504596669635880081
• 21640331339991 cubed (21640331339991³) is 10134252440342903988516420735319315619271
• The square root of 21640331339991 is 4651916.9532560445
• The cube root of 21640331339991 is 27866.8556965255

Scales and comparisons

• 21,640,331,339,991 seconds is equal to 688,095 years, 31 weeks, 21 hours, 59 minutes, 51 seconds.
• To count from 1 to 21,640,331,339,991 would take you about one million, seven hundred twenty thousand, two 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 21640331339991 cubic inches would be around 2322.2 feet tall.

Recreational maths with 21640331339991

• 21640331339991 backwards is 19993313304612
• The number of decimal digits it has is: 14
• The sum of 21640331339991's digits is 54
• More coming soon!