640848290680

Names of 640848290680

• Cardinal: 640848290680 can be written as Six hundred forty billion, eight hundred forty-eight million, two hundred ninety thousand, six hundred eighty.

Scientific notation

• Scientific notation: 6.4084829068 × 10¹¹

Factors of 640848290680

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 72

Divisors of 640848290680

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 4 5 8 10 13 20 23 26 29 40 46 52 58 65 92 104 115 116 130 145 169 184 230 232 260 290 299 338 377 460 520 580 598 667 676 754 841 845 920 1160 1196 1334 1352 1495 1508 1682 1690 1885 2197 2392 2668 2990 3016 3335 3364 3380 3770 3887 4205 4394 4901 5336 5980 6670 6728 6760 7540 7774 8410 8671 8788 9802 10933 10985 11960 13340 15080 15548 16820 17342 17576 19343 19435 19604 21866 21970 24389 24505 26680 28561 31096 33640 34684 38686 38870 39208 43355 43732 43940 48778 49010 50531 54665 57122 63713 69368 77372 77740 86710 87464 87880 96715 97556 98020 101062 109330 112723 114244 121945 127426 142129 142805 154744 155480 173420 193430 195112 196040 202124 218660 225446 228488 243890 251459 252655 254852 284258 285610 317057 318565 346840 386860 404248 437320 450892 487780 502918 505310 509704 560947 563615 568516 571220 634114 637130 656903 710645 773720 828269 901784 975560 1005836 1010620 1121894 1127230 1137032 1142440 1257295 1268228 1274260 1313806 1421290 1465399 1585285 1656538 1847677 2011672 2021240 2243788 2254460 2514590 2536456 2548520 2627612 2804735 2842580 2930798 3170570 3268967 3284515 3313076 3695354 4121741 4141345 4487576 4508920 5029180 5255224 5609470 5685160 5861596 6341140 6537934 6569030 6626152 7292311 7326995 7390708 8243482 8282690 9238385 10058360 11218940 11723192 12682280 13075868 13138060 14584622 14653990 14781416 16344835 16486964 16565380 18476770 19050187 20608705 22437880 24019801 26151736 26276120 29169244 29307980 32689670 32973928 33130760 36461555 36953540 38100374 41217410 42496571 48039602 53582633 58338488 58615960 65379340 72923110 73907080 76200748 82434820 84993142 94800043 95250935 96079204 107165266 120099005 130758680 145846220 152401496 164869640 169986284 189600086 190501870 192158408 212482855 214330532 240198010 267913165 291692440 339972568 379200172 381003740 424965710 428661064 474000215 480396020 535826330 552455423 696574229 758400344 762007480 849931420 948000430 960792040 1071652660 1104910846 1232400559 1393148458 1699862840 1896000860 2143305320 2209821692 2464801118 2762277115 2786296916 3482871145 3792001720 4419643384 4929602236 5524554230 5572593832 6162002795 6965742290 9859204472 11049108460 12324005590 13931484580 16021207267 22098216920 24648011180 27862969160 32042414534 49296022360 64084829068 80106036335 128169658136 160212072670 320424145340 640848290680
• Sum of all divisors σ(n): 1688190465600
• Sum of proper divisors (its aliquot sum) s(n): 1047342174920
• 640848290680 is an abundant number, because the sum of its proper divisors (1047342174920) is greater than itself. Its abundance is 406493884240

Bases of 640848290680

• Binary: 1001010100110101100010001110001101111000₂
• Hexadecimal: 0x953588E378
• Base-36: 86EGIXRS

Squares and roots of 640848290680

• 640848290680 squared (640848290680²) is 410686531667477774862400
• 640848290680 cubed (640848290680³) is 263187761824400822167458912202432000
• The square root of 640848290680 is 800530.0061084531
• The cube root of 640848290680 is 8621.5445517971

Scales and comparisons

• 640,848,290,680 seconds is equal to 20,376 years, 51 weeks, 4 days, 14 hours, 4 minutes, 40 seconds.
• To count from 1 to 640,848,290,680 would take you about forty thousand, seven hundred fifty-three 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 640848290680 cubic inches would be around 718.5 feet tall.

Recreational maths with 640848290680

• 640848290680 backwards is 086092848046
• The number of decimal digits it has is: 12
• The sum of 640848290680's digits is 55
• More coming soon!