640899428416

Names of 640899428416

• Cardinal: 640899428416 can be written as Six hundred forty billion, eight hundred ninety-nine million, four hundred twenty-eight thousand, four hundred sixteen.

Scientific notation

• Scientific notation: 6.40899428416 × 10¹¹

Factors of 640899428416

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3603

Divisors of 640899428416

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 8 13 16 19 26 32 38 41 52 64 76 82 104 152 164 208 247 304 307 328 416 494 533 608 614 656 779 832 988 1066 1216 1228 1312 1558 1976 2132 2456 2624 3116 3221 3952 3991 4264 4912 5833 6232 6442 7904 7982 8528 9824 10127 11666 12464 12587 12884 15808 15964 17056 19648 20254 23332 24928 25174 25768 31928 34112 40508 41873 46664 49856 50348 51536 61199 63856 75829 81016 83746 93328 100696 103072 122398 127712 132061 151658 162032 163631 167492 186656 201392 206144 239153 244796 255424 264122 303316 324064 327262 334984 373312 402784 478306 489592 528244 606632 648128 654524 669968 795587 805568 956612 979184 988847 1056488 1213264 1309048 1339936 1591174 1716793 1913224 1958368 1977694 2112976 2426528 2509159 2618096 2679872 3108989 3182348 3433586 3826448 3916736 3955388 4225952 4853056 5018318 5236192 6217978 6364696 6867172 7652896 7910776 8451904 10036636 10472384 12435956 12729392 12855011 13734344 15305792 15821552 18788093 20073272 24871912 25458784 25710022 27468688 31643104 32619067 37576186 40146544 40542727 49743824 50917568 51420044 54937376 63286208 65238134 75152372 80293088 81085454 99487648 102840088 109874752 130476268 150304744 160586176 162170908 198975296 205680176 244245209 260952536 300609488 324341816 411360352 488490418 521905072 527055451 601218976 648683632 770311813 822720704 976980836 1043810144 1054110902 1202437952 1297367264 1540623626 1953961672 2087620288 2108221804 2594734528 3081247252 3907923344 4216443608 6162494504 7815846688 8432887216 10014053569 12324989008 15631693376 16865774432 20028107138 24649978016 33731548864 40056214276 49299956032 80112428552 160224857104 320449714208 640899428416
• Sum of all divisors σ(n): 1482133403520
• Sum of proper divisors (its aliquot sum) s(n): 841233975104
• 640899428416 is an abundant number, because the sum of its proper divisors (841233975104) is greater than itself. Its abundance is 200334546688

Bases of 640899428416

• Binary: 1001010100111000100101010011000001000000₂
• Hexadecimal: 0x9538953040
• Base-36: 86FAYZWG

Squares and roots of 640899428416

• 640899428416 squared (640899428416²) is 410752077343955508269056
• 640899428416 cubed (640899428416³) is 263250771590425708682172751939895296
• The square root of 640899428416 is 800561.9453958575
• The cube root of 640899428416 is 8621.7738700039

Scales and comparisons

• 640,899,428,416 seconds is equal to 20,378 years, 32 weeks, 1 day, 11 hours, 16 seconds.
• To count from 1 to 640,899,428,416 would take you about forty thousand, seven hundred fifty-seven 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 640899428416 cubic inches would be around 718.5 feet tall.

Recreational maths with 640899428416

• 640899428416 backwards is 614824998046
• The number of decimal digits it has is: 12
• The sum of 640899428416's digits is 61
• More coming soon!