643684873216

Names of 643684873216

• Cardinal: 643684873216 can be written as Six hundred forty-three billion, six hundred eighty-four million, eight hundred seventy-three thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 6.43684873216 × 10¹¹

Factors of 643684873216

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 1210

Divisors of 643684873216

• Number of divisors d(n): 396
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 32 44 49 56 64 77 88 97 98 112 121 128 154 176 194 196 224 242 256 308 352 388 392 448 484 512 539 616 679 704 776 784 847 896 968 1024 1067 1078 1093 1232 1358 1408 1552 1568 1694 1792 1936 2134 2156 2186 2464 2716 2816 3104 3136 3388 3584 3872 4268 4312 4372 4753 4928 5432 5632 5929 6208 6272 6776 7168 7469 7651 7744 8536 8624 8744 9506 9856 10864 11264 11737 11858 12023 12416 12544 13552 14938 15302 15488 17072 17248 17488 19012 19712 21728 23474 23716 24046 24832 25088 27104 29876 30604 30976 34144 34496 34976 38024 39424 43456 46948 47432 48092 49664 50176 52283 53557 54208 59752 61208 61952 68288 68992 69952 76048 78848 82159 84161 86912 93896 94864 96184 99328 104566 106021 107114 108416 119504 122416 123904 132253 136576 137984 139904 152096 164318 168322 173824 187792 189728 192368 209132 212042 214228 216832 239008 244832 264506 273152 275968 279808 304192 328636 336644 347648 375584 379456 384736 418264 424084 428456 433664 478016 489664 529012 546304 551936 559616 575113 589127 608384 657272 673288 695296 742147 751168 758912 769472 836528 848168 856912 867328 925771 956032 979328 1058024 1092608 1119232 1150226 1166231 1178254 1216768 1314544 1346576 1484294 1502336 1517824 1538944 1673056 1696336 1713824 1851542 1912064 1958656 2116048 2300452 2332462 2356508 2433536 2629088 2693152 2968588 3004672 3035648 3077888 3346112 3392672 3427648 3703084 3824128 3917312 4232096 4600904 4664924 4713016 4867072 5195029 5258176 5386304 5937176 6009344 6071296 6155776 6480397 6692224 6785344 6855296 7406168 7648256 7834624 8163617 8464192 9201808 9329848 9426032 10390058 10516352 10772608 11874352 12018688 12311552 12828541 12960794 13384448 13570688 13710592 14812336 16327234 16928384 18403616 18659696 18852064 20780116 21032704 21545216 23748704 25657082 25921588 26768896 27141376 27421184 29624672 32654468 33856768 36807232 37319392 37704128 41560232 42065408 43090432 47497408 51314164 51843176 53537792 54282752 54842368 57145319 59249344 65308936 67713536 73614464 74638784 75408256 83120464 84130816 86180864 89799787 94994816 102628328 103686352 108565504 114290638 118498688 130617872 135427072 147228928 149277568 150816512 166240928 179599574 189989632 205256656 207372704 228581276 236997376 261235744 294457856 298555136 301633024 332481856 359199148 379979264 410513312 414745408 457162552 473994752 522471488 588915712 597110272 603266048 628598509 664963712 718398296 759958528 821026624 829490816 914325104 947989504 1044942976 1194220544 1257197018 1329927424 1436796592 1642053248 1658981632 1828650208 2089885952 2514394036 2659854848 2873593184 3284106496 3317963264 3657300416 4179771904 5028788072 5319709696 5747186368 6568212992 6635926528 7314600832 8359543808 10057576144 11494372736 13136425984 14629201664 20115152288 22988745472 29258403328 40230304576 45977490944 58516806656 80460609152 91954981888 160921218304 321842436608 643684873216
• Sum of all divisors σ(n): 1663748730084
• Sum of proper divisors (its aliquot sum) s(n): 1020063856868
• 643684873216 is an abundant number, because the sum of its proper divisors (1020063856868) is greater than itself. Its abundance is 376378983652

Bases of 643684873216

• Binary: 1001010111011110100110111011010000000000₂
• Hexadecimal: 0x95DE9BB400
• Base-36: 87PDCQV4

Squares and roots of 643684873216

• 643684873216 squared (643684873216²) is 414330216007097994182656
• 643684873216 cubed (643684873216³) is 266698092560086766141550832906141696
• The square root of 643684873216 is 802299.7402567197
• The cube root of 643684873216 is 8634.2463247429

Scales and comparisons

• 643,684,873,216 seconds is equal to 20,467 years, 9 weeks, 5 days, 9 hours, 40 minutes, 16 seconds.
• To count from 1 to 643,684,873,216 would take you about forty thousand, nine hundred thirty-four 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 643684873216 cubic inches would be around 719.5 feet tall.

Recreational maths with 643684873216

• 643684873216 backwards is 612378486346
• The number of decimal digits it has is: 12
• The sum of 643684873216's digits is 58
• More coming soon!