21493734912

Names of 21493734912

• Cardinal: 21493734912 can be written as Twenty-one billion, four hundred ninety-three million, seven hundred thirty-four thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 2.1493734912 × 10¹⁰

Factors of 21493734912

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 252

Divisors of 21493734912

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 81 96 97 104 108 117 128 137 144 156 162 192 194 208 216 234 243 256 274 288 291 312 324 351 384 388 411 416 432 468 486 512 548 576 582 624 648 702 768 776 822 832 864 873 936 972 1053 1096 1152 1164 1233 1248 1261 1296 1404 1536 1552 1644 1664 1728 1746 1781 1872 1944 2106 2192 2304 2328 2466 2496 2522 2592 2619 2808 3104 3159 3288 3328 3456 3492 3562 3699 3744 3783 3888 4212 4384 4608 4656 4932 4992 5044 5184 5238 5343 5616 6208 6318 6576 6656 6912 6984 7124 7398 7488 7566 7776 7857 8424 8768 9312 9864 9984 10088 10368 10476 10686 11097 11232 11349 12416 12636 13152 13289 13824 13968 14248 14796 14976 15132 15552 15714 16029 16848 17536 18624 19728 19968 20176 20736 20952 21372 22194 22464 22698 23571 24832 25272 26304 26578 27936 28496 29592 29952 30264 31104 31428 32058 33291 33696 34047 35072 37248 39456 39867 40352 41472 41904 42744 44388 44928 45396 47142 48087 49664 50544 52608 53156 55872 56992 59184 59904 60528 62208 62856 64116 66582 67392 68094 70144 74496 78912 79734 80704 83808 85488 88776 89856 90792 94284 96174 101088 102141 105216 106312 111744 113984 118368 119601 121056 124416 125712 128232 133164 134784 136188 144261 148992 157824 159468 161408 167616 170976 172757 177552 179712 181584 188568 192348 202176 204282 210432 212624 223488 227968 236736 239202 242112 251424 256464 266328 269568 272376 288522 306423 315648 318936 322816 335232 341952 345514 355104 358803 363168 377136 384696 404352 408564 425248 432783 446976 455936 473472 478404 484224 502848 512928 518271 532656 539136 544752 577044 612846 631296 637872 645632 670464 683904 691028 710208 717606 726336 754272 769392 808704 817128 850496 865566 911872 946944 956808 968448 1005696 1025856 1036542 1065312 1076409 1089504 1154088 1225692 1275744 1340928 1367808 1382056 1420416 1435212 1452672 1508544 1538784 1554813 1617408 1634256 1700992 1731132 1893888 1913616 1936896 2011392 2051712 2073084 2130624 2152818 2179008 2308176 2451384 2551488 2735616 2764112 2840832 2870424 2905344 3017088 3077568 3109626 3229227 3268512 3401984 3462264 3827232 4022784 4103424 4146168 4261248 4305636 4358016 4616352 4664439 4902768 5102976 5528224 5681664 5740848 5810688 6034176 6155136 6219252 6458454 6537024 6803968 6924528 7654464 8206848 8292336 8522496 8611272 8716032 9232704 9328878 9805536 10205952 11056448 11481696 12068352 12310272 12438504 12916908 13074048 13849056 13993317 15308928 16584672 17044992 17222544 17432064 18465408 18657756 19611072 20411904 22112896 22963392 24620544 24877008 25833816 26148096 27698112 27986634 30617856 33169344 34445088 36930816 37315512 39222144 41979951 44225792 45926784 49754016 51667632 52296192 55396224 55973268 61235712 66338688 68890176 73861632 74631024 78444288 83959902 88451584 91853568 99508032 103335264 110792448 111946536 132677376 137780352 149262048 156888576 167919804 183707136 199016064 206670528 221584896 223893072 265354752 275560704 298524096 335839608 398032128 413341056 447786144 551121408 597048192 671679216 796064256 826682112 895572288 1194096384 1343358432 1653364224 1791144576 2388192768 2686716864 3582289152 5373433728 7164578304 10746867456 21493734912
• Sum of all divisors σ(n): 70503424992
• Sum of proper divisors (its aliquot sum) s(n): 49009690080
• 21493734912 is an abundant number, because the sum of its proper divisors (49009690080) is greater than itself. Its abundance is 27515955168

Bases of 21493734912

• Binary: 10100000001001000000101111000000000₂
• Hexadecimal: 0x501205E00
• Base-36: 9VGTC00

Squares and roots of 21493734912

• 21493734912 squared (21493734912²) is 461980640467327647744
• 21493734912 cubed (21493734912³) is 9929689420680720257658050838528
• The square root of 21493734912 is 146607.4176568157
• The cube root of 21493734912 is 2780.3787638439

Scales and comparisons

• 21,493,734,912 seconds is equal to 683 years, 22 weeks, 4 days, 1 hour, 55 minutes, 12 seconds.
• To count from 1 to 21,493,734,912 would take you about one thousand, three hundred sixty-six 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 21493734912 cubic inches would be around 231.7 feet tall.

Recreational maths with 21493734912

• 21493734912 backwards is 21943739412
• The number of decimal digits it has is: 11
• The sum of 21493734912's digits is 45
• More coming soon!