21478450752

Names of 21478450752

• Cardinal: 21478450752 can be written as Twenty-one billion, four hundred seventy-eight million, four hundred fifty thousand, seven hundred fifty-two.

Scientific notation

• Scientific notation: 2.1478450752 × 10¹⁰

Factors of 21478450752

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1079

Divisors of 21478450752

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 44 48 54 64 66 72 88 96 99 108 132 144 176 192 198 216 264 288 297 352 396 432 528 576 594 704 792 864 1056 1063 1188 1584 1728 2112 2126 2376 3168 3189 4252 4752 6336 6378 8504 9504 9567 11693 12756 17008 19008 19134 23386 25512 28701 34016 35079 38268 46772 51024 57402 68032 70158 76536 93544 102048 105237 114804 140316 153072 187088 204096 210474 229608 280632 306144 315711 374176 420948 459216 561264 612288 631422 748352 841896 918432 1122528 1129969 1262844 1683792 1836864 2245056 2259938 2525688 3367584 3389907 4519876 5051376 6735168 6779814 9039752 10102752 10169721 12429659 13559628 18079504 20205504 20339442 24859318 27119256 30509163 36159008 37288977 40678884 49718636 54238512 61018326 72318016 74577954 81357768 99437272 108477024 111866931 122036652 149155908 162715536 198874544 216954048 223733862 244073304 298311816 325431072 335600793 397749088 447467724 488146608 596623632 650862144 671201586 795498176 894935448 976293216 1193247264 1342403172 1789870896 1952586432 2386494528 2684806344 3579741792 5369612688 7159483584 10739225376 21478450752
• Sum of all divisors σ(n): 68947771680
• Sum of proper divisors (its aliquot sum) s(n): 47469320928
• 21478450752 is an abundant number, because the sum of its proper divisors (47469320928) is greater than itself. Its abundance is 25990870176

Bases of 21478450752

• Binary: 10100000000001101110010011001000000₂
• Hexadecimal: 0x500372640
• Base-36: 9V7PQO0

Squares and roots of 21478450752

• 21478450752 squared (21478450752²) is 461323846706089365504
• 21478450752 cubed (21478450752³) is 9908521522199937855488591659008
• The square root of 21478450752 is 146555.2822384783
• The cube root of 21478450752 is 2779.7195666261

Scales and comparisons

• 21,478,450,752 seconds is equal to 682 years, 49 weeks, 2 days, 4 hours, 19 minutes, 12 seconds.
• To count from 1 to 21,478,450,752 would take you about one thousand, three hundred sixty-five 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 21478450752 cubic inches would be around 231.6 feet tall.

Recreational maths with 21478450752

• 21478450752 backwards is 25705487412
• The number of decimal digits it has is: 11
• The sum of 21478450752's digits is 45
• More coming soon!