21696521472

Names of 21696521472

• Cardinal: 21696521472 can be written as Twenty-one billion, six hundred ninety-six million, five hundred twenty-one thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.1696521472 × 10¹⁰

Factors of 21696521472

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 7939

Divisors of 21696521472

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 576 768 1152 1453 2304 2906 4359 5812 6481 8718 11624 12962 13077 17436 19443 23248 25924 26154 34872 38886 46496 51848 52308 58329 69744 77772 92992 103696 104616 116658 139488 155544 185984 207392 209232 233316 278976 311088 371968 414784 418464 466632 557952 622176 829568 836928 933264 1115904 1244352 1659136 1673856 1866528 2488704 3347712 3733056 4977408 7466112 9416893 14932224 18833786 28250679 37667572 56501358 75335144 84752037 113002716 150670288 169504074 226005432 301340576 339008148 452010864 602681152 678016296 904021728 1205362304 1356032592 1808043456 2410724608 2712065184 3616086912 5424130368 7232173824 10848260736 21696521472
• Sum of all divisors σ(n): 62609132404
• Sum of proper divisors (its aliquot sum) s(n): 40912610932
• 21696521472 is an abundant number, because the sum of its proper divisors (40912610932) is greater than itself. Its abundance is 19216089460

Bases of 21696521472

• Binary: 10100001101001101101010010100000000₂
• Hexadecimal: 0x50D36A500
• Base-36: 9YTJR40

Squares and roots of 21696521472

• 21696521472 squared (21696521472²) is 470739043984957046784
• 21696521472 cubed (21696521472³) is 10213399775528373010546764546048
• The square root of 21696521472 is 147297.3912599949
• The cube root of 21696521472 is 2789.0954048909

Scales and comparisons

• 21,696,521,472 seconds is equal to 689 years, 45 weeks, 6 days, 3 hours, 31 minutes, 12 seconds.
• To count from 1 to 21,696,521,472 would take you about one thousand, three 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 21696521472 cubic inches would be around 232.4 feet tall.

Recreational maths with 21696521472

• 21696521472 backwards is 27412569612
• The number of decimal digits it has is: 11
• The sum of 21696521472's digits is 45
• More coming soon!