640485476748

Names of 640485476748

• Cardinal: 640485476748 can be written as Six hundred forty billion, four hundred eighty-five million, four hundred seventy-six thousand, seven hundred forty-eight.

Scientific notation

• Scientific notation: 6.40485476748 × 10¹¹

Factors of 640485476748

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 245

Divisors of 640485476748

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 81 108 117 156 162 169 227 234 324 338 351 454 468 507 676 681 702 908 1014 1053 1362 1404 1521 2028 2043 2106 2724 2951 3042 4086 4212 4563 5902 6084 6129 8172 8853 9126 11804 12258 13689 17706 18252 18387 24516 26559 27378 35412 36774 38363 51529 53118 54756 73548 76726 79677 103058 106236 115089 153452 154587 159354 206116 230178 239031 309174 318708 345267 460356 463761 478062 618348 669877 690534 927522 956124 1035801 1339754 1381068 1391283 1855044 2009631 2071602 2679508 2782566 3107403 4019262 4143204 4173849 5565132 6028893 6214806 8038524 8347698 8708401 11697083 12057786 12429612 16695396 17416802 18086679 23394166 24115572 26125203 34833604 35091249 36173358 46788332 52250406 54260037 70182498 72346716 78375609 104500812 105273747 108520074 140364996 152062079 156751218 210547494 217040148 235126827 304124158 313502436 315821241 421094988 456186237 470253654 608248316 631642482 705380481 912372474 940507308 947463723 1263284964 1368558711 1410760962 1824744948 1894927446 1976807027 2737117422 2821521924 3789854892 3953614054 4105676133 5474234844 5930421081 7907228108 8211352266 11860842162 12317028399 16422704532 17791263243 23721684324 24634056798 35582526486 49268113596 53373789729 71165052972 106747579458 160121369187 213495158916 320242738374 640485476748
• Sum of all divisors σ(n): 1821081948840
• Sum of proper divisors (its aliquot sum) s(n): 1180596472092
• 640485476748 is an abundant number, because the sum of its proper divisors (1180596472092) is greater than itself. Its abundance is 540110995344

Bases of 640485476748

• Binary: 1001010100011111111010001100100110001100₂
• Hexadecimal: 0x951FE8C98C
• Base-36: 868GIKR0

Squares and roots of 640485476748

• 640485476748 squared (640485476748²) is 410221645925112848655504
• 640485476748 cubed (640485476748³) is 262741006462695154376820850254220992
• The square root of 640485476748 is 800303.3654483779
• The cube root of 640485476748 is 8619.9172259463

Scales and comparisons

• 640,485,476,748 seconds is equal to 20,365 years, 23 weeks, 5 days, 8 hours, 25 minutes, 48 seconds.
• To count from 1 to 640,485,476,748 would take you about forty thousand, seven hundred thirty 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 640485476748 cubic inches would be around 718.3 feet tall.

Recreational maths with 640485476748

• 640485476748 backwards is 847674584046
• The number of decimal digits it has is: 12
• The sum of 640485476748's digits is 63
• More coming soon!