21408111621117

Names of 21408111621117

• Cardinal: 21408111621117 can be written as Twenty-one trillion, four hundred eight billion, one hundred eleven million, six hundred twenty-one thousand, one hundred seventeen.

Scientific notation

• Scientific notation: 2.1408111621117 × 10¹³

Factors of 21408111621117

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 559

Divisors of 21408111621117

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 9 13 39 73 97 117 169 219 291 373 507 657 873 949 1119 1261 1521 2847 3357 3783 4849 5329 7081 8541 11349 12337 14547 15987 16393 21243 27229 36181 37011 43641 47961 49179 63037 63729 69277 81687 92053 108543 111033 147537 189111 207831 245061 276159 325629 353977 389017 470353 516913 567333 623493 828477 900601 1061931 1167051 1196689 1411059 1550739 1987717 2641213 2701803 3185793 3501153 3590067 4233177 4601701 4652217 5057221 5963151 6114589 6719869 7923639 8105409 10770201 13805103 15171663 17889453 18343767 20159607 23770917 25840321 34335769 37734649 41415309 45514989 55031301 60478821 65743873 77520963 87358297 103007307 113203947 145103341 192808549 197231619 232562889 262074891 309021921 335924173 339611841 435310023 446364997 490550437 578425647 591694857 786224673 1007772519 1305930069 1339094991 1471651311 1735276941 1886343433 2506511137 3023317557 4017284973 4414953933 5659030299 6377155681 7519533411 14075024077 16977090897 19131467043 22558600233 24522464629 32584644781 42225072231 57394401129 73567393887 97753934343 126675216693 182975313001 220702181661 293261803029 548925939003 1646777817009 2378679069013 7136037207039 21408111621117
• Sum of all divisors σ(n): 34391494497360
• Sum of proper divisors (its aliquot sum) s(n): 12983382876243
• 21408111621117 is a deficient number, because the sum of its proper divisors (12983382876243) is less than itself. Its deficiency is 8424728744874

Bases of 21408111621117

• Binary: 100110111100001110110111000110111001111111101₂
• Hexadecimal: 0x137876E373FD
• Base-36: 7L6R0X1X9

Squares and roots of 21408111621117

• 21408111621117 squared (21408111621117²) is 458307243182204745760327689
• 21408111621117 cubed (21408111621117³) is 9811492618811052385565339634902932208613
• The square root of 21408111621117 is 4626890.0593289443
• The cube root of 21408111621117 is 27766.8184155353

Scales and comparisons

• 21,408,111,621,117 seconds is equal to 680,711 years, 37 weeks, 6 days, 16 hours, 31 minutes, 57 seconds.
• To count from 1 to 21,408,111,621,117 would take you about one million, seven hundred one thousand, seven hundred seventy-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 21408111621117 cubic inches would be around 2313.9 feet tall.

Recreational maths with 21408111621117

• 21408111621117 backwards is 71112611180412
• The number of decimal digits it has is: 14
• The sum of 21408111621117's digits is 36
• More coming soon!