21100394016

Names of 21100394016

• Cardinal: 21100394016 can be written as Twenty-one billion, one hundred million, three hundred ninety-four thousand and sixteen.

Scientific notation

• Scientific notation: 2.1100394016 × 10¹⁰

Factors of 21100394016

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 19536

Divisors of 21100394016

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 17 18 24 26 32 34 36 39 48 51 52 68 72 78 96 102 104 117 136 144 153 156 204 208 221 234 272 288 289 306 312 408 416 442 468 544 578 612 624 663 816 867 884 936 1156 1224 1248 1326 1632 1734 1768 1872 1989 2312 2448 2601 2652 3468 3536 3744 3757 3978 4624 4896 5202 5304 6936 7072 7514 7956 9248 10404 10608 11271 13872 15028 15912 19501 20808 21216 22542 27744 30056 31824 33813 39002 41616 45084 58503 60112 63648 67626 78004 83232 90168 117006 120224 135252 156008 175509 180336 234012 253513 270504 312016 331517 351018 360672 468024 507026 541008 624032 663034 702036 760539 936048 994551 1014052 1082016 1326068 1404072 1521078 1872096 1989102 2028104 2281617 2652136 2808144 2983653 3042156 3978204 4056208 4309721 4563234 5304272 5616288 5635789 5967306 6084312 7956408 8112416 8619442 9126468 10608544 11271578 11934612 12168624 12929163 15912816 16907367 17238884 18252936 22543156 23869224 24337248 25858326 31825632 33814734 34477768 36505872 38787489 45086312 47738448 50722101 51716652 67629468 68955536 73011744 73265257 77574978 90172624 95476896 101444202 103433304 135258936 137911072 146530514 155149956 180345248 202888404 206866608 219795771 270517872 293061028 310299912 405776808 413733216 439591542 541035744 586122056 620599824 659387313 811553616 879183084 1172244112 1241199648 1318774626 1623107232 1758366168 2344488224 2637549252 3516732336 5275098504 7033464672 10550197008 21100394016
• Sum of all divisors σ(n): 68648249124
• Sum of proper divisors (its aliquot sum) s(n): 47547855108
• 21100394016 is an abundant number, because the sum of its proper divisors (47547855108) is greater than itself. Its abundance is 26447461092

Bases of 21100394016

• Binary: 10011101001101011100111011000100000₂
• Hexadecimal: 0x4E9AE7620
• Base-36: 9OYMO80

Squares and roots of 21100394016

• 21100394016 squared (21100394016²) is 445226627630448608256
• 21100394016 cubed (21100394016³) is 9394457269417378073040430596096
• The square root of 21100394016 is 145259.7467160121
• The cube root of 21100394016 is 2763.3136885113

Scales and comparisons

• 21,100,394,016 seconds is equal to 670 years, 48 weeks, 1 day, 12 hours, 33 minutes, 36 seconds.
• To count from 1 to 21,100,394,016 would take you about one thousand, three hundred forty-one 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 21100394016 cubic inches would be around 230.3 feet tall.

Recreational maths with 21100394016

• 21100394016 backwards is 61049300112
• The number of decimal digits it has is: 11
• The sum of 21100394016's digits is 27
• More coming soon!