21100734720

Names of 21100734720

• Cardinal: 21100734720 can be written as Twenty-one billion, one hundred million, seven hundred thirty-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.110073472 × 10¹⁰

Factors of 21100734720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 140920

Divisors of 21100734720

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 32 36 39 40 45 48 52 60 64 65 72 78 80 90 96 104 117 120 128 130 144 156 160 180 192 195 208 234 240 256 260 288 312 320 360 384 390 416 468 480 520 576 585 624 640 720 768 780 832 936 960 1040 1152 1170 1248 1280 1440 1560 1664 1872 1920 2080 2304 2340 2496 2880 3120 3328 3744 3840 4160 4680 4992 5760 6240 7488 8320 9360 9984 11520 12480 14976 16640 18720 24960 29952 37440 49920 74880 140897 149760 281794 422691 563588 704485 845382 1127176 1268073 1408970 1690764 1831661 2113455 2254352 2536146 2817940 3381528 3663322 4226910 4508704 5072292 5494983 5635880 6340365 6763056 7326644 8453820 9017408 9158305 10144584 10989966 11271760 12680730 13526112 14653288 16484949 16907640 18034816 18316610 20289168 21979932 22543520 25361460 27052224 27474915 29306576 32969898 33815280 36069632 36633220 40578336 43959864 45087040 50722920 54104448 54949830 58613152 65939796 67630560 73266440 81156672 82424745 87919728 90174080 101445840 108208896 109899660 117226304 131879592 135261120 146532880 162313344 164849490 175839456 180348160 202891680 219799320 234452608 263759184 270522240 293065760 324626688 329698980 351678912 405783360 439598640 468905216 527518368 541044480 586131520 659397960 703357824 811566720 879197280 1055036736 1172263040 1318795920 1406715648 1623133440 1758394560 2110073472 2344526080 2637591840 3516789120 4220146944 5275183680 7033578240 10550367360 21100734720
• Sum of all divisors σ(n): 78622774776
• Sum of proper divisors (its aliquot sum) s(n): 57522040056
• 21100734720 is an abundant number, because the sum of its proper divisors (57522040056) is greater than itself. Its abundance is 36421305336

Bases of 21100734720

• Binary: 10011101001101100111010100100000000₂
• Hexadecimal: 0x4E9B3A900
• Base-36: 9OYTZ40

Squares and roots of 21100734720

• 21100734720 squared (21100734720²) is 445241005723813478400
• 21100734720 cubed (21100734720³) is 9394912348244189794478850048000
• The square root of 21100734720 is 145260.9194518609
• The cube root of 21100734720 is 2763.3285613293

Scales and comparisons

• 21,100,734,720 seconds is equal to 670 years, 48 weeks, 5 days, 11 hours, 12 minutes.
• To count from 1 to 21,100,734,720 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 21100734720 cubic inches would be around 230.3 feet tall.

Recreational maths with 21100734720

• 21100734720 backwards is 02743700112
• The number of decimal digits it has is: 11
• The sum of 21100734720's digits is 27
• More coming soon!