640771398434816

Names of 640771398434816

• Cardinal: 640771398434816 can be written as Six hundred forty trillion, seven hundred seventy-one billion, three hundred ninety-eight million, four hundred thirty-four thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 6.40771398434816 × 10¹⁴

Factors of 640771398434816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 5143

Divisors of 640771398434816

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 4 8 11 16 17 22 32 34 44 64 68 88 128 136 176 187 256 272 352 374 512 544 704 748 1024 1088 1408 1496 2048 2176 2816 2992 4096 4352 5113 5632 5984 8192 8704 10226 11264 11968 16384 17408 20452 22528 23936 32768 34816 40904 45056 47872 56243 65536 69632 81808 86921 90112 95744 112486 131072 139264 163616 173842 180224 191488 224972 278528 327232 347684 360448 382976 449944 557056 654464 695368 720896 765952 899888 956131 1114112 1308928 1390736 1441792 1531904 1799776 1912262 2228224 2617856 2781472 3063808 3599552 3824524 5235712 5562944 6127616 7199104 7649048 10471424 11125888 12255232 14398208 15298096 20942848 22251776 24510464 26142769 28796416 30596192 41885696 44503552 52285538 57592832 61192384 83771392 89007104 104571076 115185664 122384768 167542784 178014208 209142152 230371328 244769536 287570459 335085568 356028416 418284304 444427073 460742656 489539072 575140918 670171136 712056832 836568608 888854146 921485312 979078144 1150281836 1424113664 1673137216 1777708292 1842970624 1958156288 2300563672 2848227328 3346274432 3555416584 3685941248 3916312576 4601127344 4888697803 5696454656 6692548864 7110833168 7371882496 7832625152 9202254688 9777395606 11392909312 13385097728 14221666336 15665250304 18404509376 19554791212 26770195456 28443332672 31330500608 36809018752 39109582424 53540390912 56886665344 62661001216 73618037504 78219164848 107080781824 113773330688 125322002432 147236075008 156438329696 214161563648 227546661376 294472150016 312876659392 428323127296 455093322752 588944300032 625753318784 856646254592 910186645504 1177888600064 1251506637568 1713292509184 1820373291008 2355777200128 2503013275136 3426585018368 3640746582016 4711554400256 5006026550272 7281493164032 9423108800512 10012053100544 14562986328064 18846217601024 20024106201088 29125972656128 37692435202048 40048212402176 58251945312256 80096424804352 160192849608704 320385699217408 640771398434816
• Sum of all divisors σ(n): 1480568650546104
• Sum of proper divisors (its aliquot sum) s(n): 839797252111288
• 640771398434816 is an abundant number, because the sum of its proper divisors (839797252111288) is greater than itself. Its abundance is 199025853676472

Bases of 640771398434816

• Binary: 10010001101100011100110111100101100000000000000000₂
• Hexadecimal: 0x246C737960000
• Base-36: 6B4UBEEFI8

Squares and roots of 640771398434816

• 640771398434816 squared (640771398434816²) is 410587985052109716574600953856
• 640771398434816 cubed (640771398434816³) is 263093037362373671247308963016544299039850496
• The square root of 640771398434816 is 25313462.7902785359
• The cube root of 640771398434816 is 86211.9971904815

Scales and comparisons

• 640,771,398,434,816 seconds is equal to 20,374,548 years, 22 weeks, 4 days, 46 minutes, 56 seconds.
• To count from 1 to 640,771,398,434,816 would take you about fifty million, nine hundred thirty-six thousand, three hundred seventy-one 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 640771398434816 cubic inches would be around 7184.3 feet tall.

Recreational maths with 640771398434816

• 640771398434816 backwards is 618434893177046
• The number of decimal digits it has is: 15
• The sum of 640771398434816's digits is 71
• More coming soon!