640553495680

Names of 640553495680

• Cardinal: 640553495680 can be written as Six hundred forty billion, five hundred fifty-three million, four hundred ninety-five thousand, six hundred eighty.

Scientific notation

• Scientific notation: 6.4055349568 × 10¹¹

Factors of 640553495680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 794

Divisors of 640553495680

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 28 32 35 37 40 49 56 64 70 74 80 98 112 128 140 148 160 185 196 224 245 259 280 296 320 370 392 448 490 518 560 592 640 740 743 784 896 980 1036 1120 1184 1295 1480 1486 1568 1813 1960 2072 2240 2368 2590 2960 2972 3136 3626 3715 3920 4144 4480 4736 5180 5201 5920 5944 6272 7252 7430 7840 8288 9065 10360 10402 11840 11888 14504 14860 15680 16576 18130 20720 20804 23680 23776 26005 27491 29008 29720 31360 33152 36260 36407 41440 41608 47552 52010 54982 58016 59440 72520 72814 82880 83216 95104 104020 109964 116032 118880 137455 145040 145628 165760 166432 182035 192437 208040 219928 232064 237760 274910 290080 291256 332864 364070 384874 416080 439856 475520 549820 552049 580160 582512 665728 728140 769748 832160 879712 962185 1099640 1104098 1160320 1165024 1347059 1456280 1539496 1664320 1759424 1924370 2199280 2208196 2330048 2694118 2760245 2912560 3078992 3328640 3518848 3848740 3864343 4398560 4416392 4660096 5388236 5520490 5825120 6157984 6735295 7697480 7728686 8797120 8832784 10776472 11040980 11650240 12315968 13470590 15394960 15457372 17594240 17665568 19321715 20425813 21552944 22081960 23300480 24631936 26941180 27050401 30789920 30914744 35331136 38643430 40851626 43105888 44163920 53882360 54100802 61579840 61829488 70662272 77286860 81703252 86211776 88327840 102129065 107764720 108201604 123159680 123658976 135252005 142980691 154573720 163406504 172423552 176655680 204258130 215529440 216403208 247317952 270504010 285961382 309147440 326813008 353311360 408516260 431058880 432806416 494635904 541008020 571922764 618294880 653626016 714903455 817032520 862117760 865612832 1000864837 1082016040 1143845528 1236589760 1307252032 1429806910 1634065040 1731225664 2001729674 2164032080 2287691056 2473179520 2614504064 2859613820 3268130080 3462451328 4003459348 4328064160 4575382112 5004324185 5719227640 6536260160 8006918696 8656128320 9150764224 10008648370 11438455280 13072520320 16013837392 17312256640 18301528448 20017296740 22876910560 32027674784 40034593480 45753821120 64055349568 80069186960 91507642240 128110699136 160138373920 320276747840 640553495680
• Sum of all divisors σ(n): 1831944946140
• Sum of proper divisors (its aliquot sum) s(n): 1191391450460
• 640553495680 is an abundant number, because the sum of its proper divisors (1191391450460) is greater than itself. Its abundance is 550837954780

Bases of 640553495680

• Binary: 1001010100100011111101101010110010000000₂
• Hexadecimal: 0x9523F6AC80
• Base-36: 869L0GHS

Squares and roots of 640553495680

• 640553495680 squared (640553495680²) is 410308780827867778662400
• 640553495680 cubed (640553495680³) is 262824723867489669983036834578432000
• The square root of 640553495680 is 800345.8600380213
• The cube root of 640553495680 is 8620.2223574081

Scales and comparisons

• 640,553,495,680 seconds is equal to 20,367 years, 32 weeks, 1 day, 14 hours, 34 minutes, 40 seconds.
• To count from 1 to 640,553,495,680 would take you about forty thousand, seven hundred thirty-five 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 640553495680 cubic inches would be around 718.4 feet tall.

Recreational maths with 640553495680

• 640553495680 backwards is 086594355046
• The number of decimal digits it has is: 12
• The sum of 640553495680's digits is 55
• More coming soon!