643370826816

Names of 643370826816

• Cardinal: 643370826816 can be written as Six hundred forty-three billion, three hundred seventy million, eight hundred twenty-six thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 6.43370826816 × 10¹¹

Factors of 643370826816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1783

Divisors of 643370826816

• Number of divisors d(n): 189
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 19 24 32 36 38 48 57 64 72 76 96 114 144 152 171 192 228 288 304 342 361 456 576 608 684 722 912 1083 1216 1368 1444 1759 1824 2166 2736 2888 3249 3518 3648 4332 5277 5472 5776 6498 7036 8664 10554 10944 11552 12996 14072 15831 17328 21108 23104 25992 28144 31662 33421 34656 42216 51984 56288 63324 66842 69312 84432 100263 103968 112576 126648 133684 168864 200526 207936 253296 267368 300789 337728 401052 506592 534736 601578 634999 802104 1013184 1069472 1203156 1269998 1604208 1904997 2138944 2406312 2539996 3094081 3208416 3809994 4812624 5079992 5714991 6188162 6416832 7619988 9282243 9625248 10159984 11429982 12376324 15239976 18564486 19250496 20319968 22859964 24752648 27846729 30479952 37128972 40639936 45719928 49505296 55693458 58787539 60959904 74257944 91439856 99010592 111386916 117575078 121919808 148515888 176362617 182879712 198021184 222773832 235150156 297031776 352725234 365759424 445547664 470300312 529087851 594063552 705450468 891095328 940600624 1058175702 1116963241 1410900936 1782190656 1881201248 2116351404 2233926482 2821801872 3350889723 3762402496 4232702808 4467852964 5643603744 6701779446 8465405616 8935705928 10052669169 11287207488 13403558892 16930811232 17871411856 20105338338 26807117784 33861622464 35742823712 40210676676 53614235568 71485647424 80421353352 107228471136 160842706704 214456942272 321685413408 643370826816
• Sum of all divisors σ(n): 1947379960071
• Sum of proper divisors (its aliquot sum) s(n): 1304009133255
• 643370826816 is an abundant number, because the sum of its proper divisors (1304009133255) is greater than itself. Its abundance is 660638306439

Bases of 643370826816

• Binary: 1001010111001011111000111011110001000000₂
• Hexadecimal: 0x95CBE3BC40
• Base-36: 87K6DN40

Squares and roots of 643370826816

• 643370826816 squared (643370826816²) is 413926020797903464697856
• 643370826816 cubed (643370826816³) is 266307926241403964122010682342506496
• 643370826816 is a perfect square number. Its square root is 802104
• The cube root of 643370826816 is 8632.8419133681

Scales and comparisons

• 643,370,826,816 seconds is equal to 20,457 years, 10 weeks, 3 days, 14 hours, 33 minutes, 36 seconds.
• To count from 1 to 643,370,826,816 would take you about forty thousand, nine hundred fourteen 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 643370826816 cubic inches would be around 719.4 feet tall.

Recreational maths with 643370826816

• 643370826816 backwards is 618628073346
• The number of decimal digits it has is: 12
• The sum of 643370826816's digits is 54
• More coming soon!