668704999872

Names of 668704999872

• Cardinal: 668704999872 can be written as Six hundred sixty-eight billion, seven hundred four million, nine hundred ninety-nine thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 6.68704999872 × 10¹¹

Factors of 668704999872

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 524385

Divisors of 668704999872

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 42 48 52 56 64 73 78 84 91 96 104 112 146 156 168 182 192 208 219 224 273 292 312 336 364 416 438 448 511 546 584 624 672 728 832 876 949 1022 1092 1168 1248 1344 1456 1533 1752 1898 2044 2184 2336 2496 2847 2912 3066 3504 3796 4088 4368 4672 5694 5824 6132 6643 7008 7592 8176 8736 11388 12264 13286 14016 15184 16352 17472 19929 22776 24528 26572 30368 32704 39858 45552 49056 53144 60736 79716 91104 98112 106288 159432 182208 212576 318864 425152 524287 637728 1048574 1275456 1572861 2097148 3145722 3670009 4194296 6291444 6815731 7340018 8388592 11010027 12582888 13631462 14680036 16777184 20447193 22020054 25165776 27262924 29360072 33554368 38272951 40894386 44040108 47710117 50331552 54525848 58720144 76545902 81788772 88080216 95420234 100663104 109051696 114818853 117440288 143130351 153091804 163577544 176160432 190840468 218103392 229637706 234880576 267910657 286260702 306183608 327155088 352320864 381680936 436206784 459275412 497548363 535821314 572521404 612367216 654310176 704641728 763361872 803731971 918550824 995096726 1071642628 1145042808 1224734432 1308620352 1492645089 1526723744 1607463942 1837101648 1990193452 2143285256 2290085616 2449468864 2985290178 3053447488 3214927884 3482838541 3674203296 3980386904 4286570512 4580171232 5970580356 6429855768 6965677082 7348406592 7960773808 8573141024 9160342464 10448515623 11941160712 12859711536 13931354164 15921547616 17146282048 20897031246 23882321424 25719423072 27862708328 31843095232 41794062492 47764642848 51438846144 55725416656 83588124984 95529285696 111450833312 167176249968 222901666624 334352499936 668704999872
• Sum of all divisors σ(n): 2207411863552
• Sum of proper divisors (its aliquot sum) s(n): 1538706863680
• 668704999872 is an abundant number, because the sum of its proper divisors (1538706863680) is greater than itself. Its abundance is 870001863808

Bases of 668704999872

• Binary: 1001101110110001111011001000100111000000₂
• Hexadecimal: 0x9BB1EC89C0
• Base-36: 8J75OW5C

Squares and roots of 668704999872

• 668704999872 squared (668704999872²) is 447166376853811520016384
• 668704999872 cubed (668704999872³) is 299022391976790736255268188157902848
• The square root of 668704999872 is 817743.8473458543
• The cube root of 668704999872 is 8744.6988292033

Scales and comparisons

• 668,704,999,872 seconds is equal to 21,262 years, 39 weeks, 4 hours, 51 minutes, 12 seconds.
• To count from 1 to 668,704,999,872 would take you about forty-two thousand, five hundred twenty-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 668704999872 cubic inches would be around 728.7 feet tall.

Recreational maths with 668704999872

• 668704999872 backwards is 278999407866
• The number of decimal digits it has is: 12
• The sum of 668704999872's digits is 75
• More coming soon!