21007748671875

Names of 21007748671875

• Cardinal: 21007748671875 can be written as Twenty-one trillion, seven billion, seven hundred forty-eight million, six hundred seventy-one thousand, eight hundred seventy-five.

Scientific notation

• Scientific notation: 2.1007748671875 × 10¹³

Factors of 21007748671875

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 579

Divisors of 21007748671875

• Number of divisors d(n): 576
• Complete list of divisors:
  1 3 5 7 9 15 17 21 25 27 35 45 51 63 75 81 85 105 119 125 135 153 175 189 225 243 255 289 315 357 375 405 425 459 525 547 567 595 625 675 765 867 875 945 1071 1125 1215 1275 1377 1445 1575 1641 1701 1785 1875 2023 2025 2125 2295 2601 2625 2735 2835 2975 3125 3213 3375 3825 3829 4131 4335 4375 4725 4923 5355 5625 6069 6075 6375 6885 7225 7803 7875 8205 8505 8925 9299 9375 9639 10115 10125 10625 11475 11487 13005 13125 13675 14175 14769 14875 15625 16065 16875 18207 19125 19145 20655 21675 21875 23409 23625 24615 26775 27897 28125 28917 30345 30375 31875 34425 34461 36125 39015 39375 41025 42525 44307 44625 46495 46875 48195 50575 50625 53125 54621 57375 57435 65025 65093 65625 68375 70227 70875 73845 74375 78125 80325 83691 84375 91035 95625 95725 103275 103383 108375 109375 117045 118125 123075 132921 133875 139485 140625 144585 151725 151875 158083 159375 163863 172125 172305 180625 195075 195279 196875 205125 212625 221535 223125 232475 234375 240975 251073 252875 253125 265625 273105 286875 287175 310149 325125 325465 328125 341875 351135 354375 369225 371875 401625 418455 421875 455175 474249 478125 478625 491589 516375 516915 541875 546875 585225 585837 590625 615375 664605 669375 697425 703125 722925 753219 758625 759375 790415 796875 819315 860625 861525 903125 930447 975375 976395 984375 1025625 1063125 1106581 1107675 1115625 1162375 1204875 1255365 1264375 1265625 1328125 1365525 1422747 1434375 1435875 1550745 1625625 1627325 1640625 1709375 1755675 1757511 1771875 1846125 1859375 2008125 2092275 2109375 2259657 2275875 2371245 2390625 2393125 2457945 2581875 2584575 2709375 2926125 2929185 2953125 3076875 3319743 3323025 3346875 3487125 3614625 3766095 3793125 3796875 3952075 3984375 4096575 4268241 4303125 4307625 4515625 4652235 4876875 4881975 4921875 5128125 5272533 5315625 5532905 5538375 5578125 5811875 6024375 6276825 6321875 6328125 6827625 7113735 7171875 7179375 7753725 8128125 8136625 8546875 8778375 8787555 8859375 9230625 9296875 9959229 10040625 10461375 11298285 11379375 11856225 11953125 11965625 12289725 12804723 12909375 12922875 13546875 14630625 14645925 14765625 15384375 15817599 16598715 16615125 16734375 17435625 18073125 18830475 18965625 18984375 19760375 20482875 21341205 21515625 21538125 22578125 23261175 24384375 24409875 25640625 26362665 26578125 27664525 27691875 27890625 29059375 29877687 30121875 31384125 31609375 34138125 35568675 35859375 35896875 38414169 38768625 40640625 40683125 42734375 43891875 43937775 44296875 46153125 49796145 50203125 52306875 56491425 56896875 59281125 59828125 61448625 64023615 64546875 64614375 67734375 73153125 73229625 76921875 79087995 82993575 83075625 83671875 87178125 89633061 90365625 94152375 94828125 98801875 102414375 106706025 107578125 107690625 116305875 121921875 122049375 128203125 131813325 132890625 138322625 138459375 145296875 149388435 150609375 156920625 158046875 170690625 177843375 179484375 192070845 193843125 203203125 203415625 219459375 219688875 230765625 248980725 251015625 261534375 268899183 282457125 284484375 296405625 299140625 307243125 320118075 322734375 323071875 365765625 366148125 384609375 395439975 414967875 415378125 435890625 448165305 451828125 470761875 474140625 494009375 512071875 533530125 538453125 581529375 609609375 610246875 659066625 691613125 692296875 726484375 746942175 753046875 784603125 853453125 889216875 897421875 960354225 969215625 1017078125 1097296875 1098444375 1153828125 1244903625 1307671875 1344495915 1412285625 1422421875 1482028125 1536215625 1600590375 1615359375 1828828125 1830740625 1977199875 2074839375 2076890625 2179453125 2240826525 2259140625 2353809375 2470046875 2560359375 2667650625 2692265625 2907646875 3051234375 3295333125 3458065625 3461484375 3734710875 3923015625 4267265625 4446084375 4801771125 4846078125 5085390625 5486484375 5492221875 6224518125 6538359375 6722479575 7061428125 7410140625 7681078125 8002951875 8076796875 9153703125 9885999375 10374196875 10384453125 11204132625 11769046875 12350234375 12801796875 13338253125 14538234375 15256171875 16476665625 17290328125 18673554375 19615078125 22230421875 24008855625 24230390625 27461109375 31122590625 33612397875 35307140625 37050703125 38405390625 40014759375 45768515625 49429996875 51870984375 56020663125 58845234375 66691265625 72691171875 82383328125 86451640625 93367771875 111152109375 120044278125 137305546875 155612953125 168061989375 176535703125 200073796875 247149984375 259354921875 280103315625 333456328125 411916640625 466838859375 600221390625 778064765625 840309946875 1000368984375 1235749921875 1400516578125 2334194296875 3001106953125 4201549734375 7002582890625 21007748671875
• Sum of all divisors σ(n): 47841990024192
• Sum of proper divisors (its aliquot sum) s(n): 26834241352317
• 21007748671875 is an abundant number, because the sum of its proper divisors (26834241352317) is greater than itself. Its abundance is 5826492680442

Bases of 21007748671875

• Binary: 100110001101100111111011001011010100110000011₂
• Hexadecimal: 0x131B3F65A983
• Base-36: 7G2TR5L6R

Squares and roots of 21007748671875

• 21007748671875 squared (21007748671875²) is 441325504260665826416015625
• 21007748671875 cubed (21007748671875³) is 9271255275996567168694251537322998046875
• The square root of 21007748671875 is 4583421.0663951659
• The cube root of 21007748671875 is 27592.6346795775

Scales and comparisons

• 21,007,748,671,875 seconds is equal to 667,981 years, 22 weeks, 1 day, 6 hours, 11 minutes, 15 seconds.
• To count from 1 to 21,007,748,671,875 would take you about one million, six hundred sixty-nine thousand, nine hundred fifty-three 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 21007748671875 cubic inches would be around 2299.4 feet tall.

Recreational maths with 21007748671875

• 21007748671875 backwards is 57817684770012
• 21007748671875 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21007748671875's digits is 63
• More coming soon!