640831810944

Names of 640831810944

• Cardinal: 640831810944 can be written as Six hundred forty billion, eight hundred thirty-one million, eight hundred ten thousand, nine hundred forty-four.

Scientific notation

• Scientific notation: 6.40831810944 × 10¹¹

Factors of 640831810944

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1825

Divisors of 640831810944

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 128 156 192 208 257 312 384 416 457 514 624 771 832 914 1028 1093 1248 1371 1542 1664 1828 2056 2186 2496 2742 3084 3279 3341 3656 4112 4372 4992 5484 5941 6168 6558 6682 7312 8224 8744 10023 10968 11882 12336 13116 13364 14209 14624 16448 17488 17823 20046 21936 23764 24672 26232 26728 28418 29248 32896 34976 35646 40092 42627 43872 47528 49344 52464 53456 56836 58496 69952 71292 80184 85254 87744 95056 98688 104928 106912 113672 117449 139904 142584 160368 170508 175488 190112 209856 213824 227344 234898 280901 285168 320736 341016 352347 380224 419712 427648 454688 469796 499501 561802 570336 641472 682032 704694 760448 842703 909376 939592 999002 1123604 1140672 1282944 1364064 1409388 1498503 1526837 1685406 1818752 1879184 1998004 2247208 2281344 2728128 2818776 2997006 3053674 3370812 3651713 3758368 3996008 4494416 4580511 5456256 5637552 5994012 6107348 6493513 6741624 7303426 7516736 7992016 8988832 9161022 10955139 11275104 11988024 12214696 12987026 13483248 14606852 15033472 15984032 17977664 18322044 19480539 21910278 22550208 23976048 24429392 25974052 26966496 29213704 31968064 35955328 36644088 38961078 43820556 45100416 47952096 48858784 51948104 53932992 58427408 63936128 73288176 77922156 87641112 95904192 97717568 103896208 107865984 116854816 128371757 146576352 155844312 175282224 191808384 195435136 207792416 233709632 256743514 293152704 311688624 350564448 385115271 415584832 467419264 513487028 586305408 623377248 701128896 770230542 831169664 1026974056 1246754496 1402257792 1540461084 1668832841 2053948112 2493508992 3080922168 3337665682 4107896224 5006498523 6161844336 6675331364 8215792448 10012997046 12323688672 13350662728 16431584896 20025994092 24647377344 26701325456 40051988184 49294754688 53402650912 80103976368 106805301824 160207952736 213610603648 320415905472 640831810944
• Sum of all divisors σ(n): 1845995820480
• Sum of proper divisors (its aliquot sum) s(n): 1205164009536
• 640831810944 is an abundant number, because the sum of its proper divisors (1205164009536) is greater than itself. Its abundance is 564332198592

Bases of 640831810944

• Binary: 1001010100110100100011010110110110000000₂
• Hexadecimal: 0x95348D6D80
• Base-36: 86E6PPXC

Squares and roots of 640831810944

• 640831810944 squared (640831810944²) is 410665409917766558171136
• 640831810944 cubed (640831810944³) is 263167458329662441592651003549712384
• The square root of 640831810944 is 800519.7130264813
• The cube root of 640831810944 is 8621.4706487127

Scales and comparisons

• 640,831,810,944 seconds is equal to 20,376 years, 24 weeks, 2 days, 20 hours, 22 minutes, 24 seconds.
• To count from 1 to 640,831,810,944 would take you about forty thousand, seven hundred fifty-two 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 640831810944 cubic inches would be around 718.5 feet tall.

Recreational maths with 640831810944

• 640831810944 backwards is 449018138046
• 640831810944 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640831810944's digits is 48
• More coming soon!