64137645990

Names of 64137645990

• Cardinal: 64137645990 can be written as Sixty-four billion, one hundred thirty-seven million, six hundred forty-five thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 6.413764599 × 10¹⁰

Factors of 64137645990

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 2714

Divisors of 64137645990

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 81 90 99 110 121 135 162 165 198 242 243 270 297 330 363 405 486 495 594 605 726 729 810 891 990 1089 1210 1215 1458 1485 1782 1815 2178 2187 2430 2673 2693 2970 3267 3630 3645 4374 4455 5346 5386 5445 6534 6561 7290 8019 8079 8910 9801 10890 10935 13122 13365 13465 16038 16158 16335 19602 19683 21870 24057 24237 26730 26930 29403 29623 32670 32805 39366 40095 40395 48114 48474 49005 58806 59246 65610 72171 72711 80190 80790 88209 88869 98010 98415 120285 121185 144342 145422 147015 148115 176418 177738 196830 216513 218133 240570 242370 264627 266607 294030 296230 325853 360855 363555 433026 436266 441045 444345 529254 533214 651706 654399 721710 727110 793881 799821 882090 888690 977559 1082565 1090665 1308798 1323135 1333035 1587762 1599642 1629265 1955118 1963197 2165130 2181330 2381643 2399463 2646270 2666070 2932677 3258530 3271995 3926394 3969405 3999105 4763286 4798926 4887795 5865354 5889591 6543990 7198389 7938810 7998210 8798031 9775590 9815985 11779182 11908215 11997315 14396778 14663385 17596062 17668773 19631970 21595167 23816430 23994630 26394093 29326770 29447955 35337546 35991945 43190334 43990155 52788186 53006319 58895910 64785501 71983890 79182279 87980310 88343865 106012638 107975835 129571002 131970465 158364558 176687730 194356503 215951670 237546837 263940930 265031595 323927505 388713006 395911395 475093674 530063190 583069509 647855010 712640511 791822790 971782515 1166139018 1187734185 1425281022 1943565030 2137921533 2375468370 2915347545 3563202555 4275843066 5830695090 6413764599 7126405110 10689607665 12827529198 21379215330 32068822995 64137645990
• Sum of all divisors σ(n): 190413148464
• Sum of proper divisors (its aliquot sum) s(n): 126275502474
• 64137645990 is an abundant number, because the sum of its proper divisors (126275502474) is greater than itself. Its abundance is 62137856484

Bases of 64137645990

• Binary: 111011101110111001101100111110100110₂
• Hexadecimal: 0xEEEE6CFA6
• Base-36: TGPWCDI

Squares and roots of 64137645990

• 64137645990 squared (64137645990²) is 4113637633138563080100
• 64137645990 cubed (64137645990³) is 263839034245382651448737813799000
• The square root of 64137645990 is 253254.1134710353
• The cube root of 64137645990 is 4002.8655714267

Scales and comparisons

• 64,137,645,990 seconds is equal to 2,039 years, 19 weeks, 4 days, 20 hours, 46 minutes, 30 seconds.
• To count from 1 to 64,137,645,990 would take you about four thousand and seventy-eight 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 64137645990 cubic inches would be around 333.6 feet tall.

Recreational maths with 64137645990

• 64137645990 backwards is 09954673146
• 64137645990 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 64137645990's digits is 54
• More coming soon!