21641397807792

Names of 21641397807792

• Cardinal: 21641397807792 can be written as Twenty-one trillion, six hundred forty-one billion, three hundred ninety-seven million, eight hundred seven thousand, seven hundred ninety-two.

Scientific notation

• Scientific notation: 2.1641397807792 × 10¹³

Factors of 21641397807792

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 776011204

Divisors of 21641397807792

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 83 84 112 166 168 249 332 336 498 581 664 996 1162 1328 1743 1992 2324 3486 3984 4648 6972 9296 13944 27888 776011109 1552022218 2328033327 3104044436 4656066654 5432077763 6208088872 9312133308 10864155526 12416177744 16296233289 18624266616 21728311052 32592466578 37248533232 43456622104 64408922047 65184933156 86913244208 128817844094 130369866312 193226766141 257635688188 260739732624 386453532282 450862454329 515271376376 772907064564 901724908658 1030542752752 1352587362987 1545814129128 1803449817316 2705174725974 3091628258256 3606899634632 5410349451948 7213799269264 10820698903896 21641397807792
• Sum of all divisors σ(n): 64663453774080
• Sum of proper divisors (its aliquot sum) s(n): 43022055966288
• 21641397807792 is an abundant number, because the sum of its proper divisors (43022055966288) is greater than itself. Its abundance is 21380658158496

Bases of 21641397807792

• Binary: 100111010111011000111110101000010101010110000₂
• Hexadecimal: 0x13AEC7D42AB0
• Base-36: 7O5X5HNLC

Squares and roots of 21641397807792

• 21641397807792 squared (21641397807792²) is 468350099075104383375915264
• 21641397807792 cubed (21641397807792³) is 10135750807403130009155102522581150937088
• The square root of 21641397807792 is 4652031.5785463021
• The cube root of 21641397807792 is 27867.3134624081

Scales and comparisons

• 21,641,397,807,792 seconds is equal to 688,129 years, 26 weeks, 3 days, 7 hours, 3 minutes, 12 seconds.
• To count from 1 to 21,641,397,807,792 would take you about one million, seven hundred twenty thousand, three 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 21641397807792 cubic inches would be around 2322.3 feet tall.

Recreational maths with 21641397807792

• 21641397807792 backwards is 29770879314612
• The number of decimal digits it has is: 14
• The sum of 21641397807792's digits is 66
• More coming soon!