64400487648

Names of 64400487648

• Cardinal: 64400487648 can be written as Sixty-four billion, four hundred million, four hundred eighty-seven thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 6.4400487648 × 10¹⁰

Factors of 64400487648

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2453

Divisors of 64400487648

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 191 224 251 336 382 502 573 672 753 764 1004 1146 1337 1506 1528 1757 1999 2008 2292 2674 3012 3056 3514 3998 4011 4016 4584 5271 5348 5997 6024 6112 7028 7996 8022 8032 9168 10542 10696 11994 12048 13993 14056 15992 16044 18336 21084 21392 23988 24096 27986 28112 31984 32088 41979 42168 42784 47941 47976 55972 56224 63968 64176 83958 84336 95882 95952 111944 128352 143823 167916 168672 191764 191904 223888 287646 335587 335832 381809 383528 447776 501749 575292 671174 671664 763618 767056 1003498 1006761 1145427 1150584 1342348 1343328 1505247 1527236 1534112 2006996 2013522 2290854 2301168 2672663 2684696 3010494 3054472 3512243 4013992 4027044 4581708 4602336 5345326 5369392 6020988 6108944 7024486 8017989 8027984 8054088 9163416 10536729 10690652 10738784 12041976 12217888 14048972 16035978 16055968 16108176 18326832 21073458 21381304 24083952 28097944 32071956 32216352 36653664 42146916 42762608 48167904 56195888 64143912 84293832 85525216 95834059 112391776 128287824 168587664 191668118 256575648 287502177 337175328 383336236 575004354 670838413 766672472 1150008708 1341676826 1533344944 2012515239 2300017416 2683353652 3066689888 4025030478 4600034832 5366707304 8050060956 9200069664 10733414608 16100121912 21466829216 32200243824 64400487648
• Sum of all divisors σ(n): 195084288000
• Sum of proper divisors (its aliquot sum) s(n): 130683800352
• 64400487648 is an abundant number, because the sum of its proper divisors (130683800352) is greater than itself. Its abundance is 66283312704

Bases of 64400487648

• Binary: 111011111110100100010111010011100000₂
• Hexadecimal: 0xEFE9174E0
• Base-36: TL2DYAO

Squares and roots of 64400487648

• 64400487648 squared (64400487648²) is 4147422809300200571904
• 64400487648 cubed (64400487648³) is 267096051401371026454826087841792
• The square root of 64400487648 is 253772.5116083301
• The cube root of 64400487648 is 4008.3261494503

Scales and comparisons

• 64,400,487,648 seconds is equal to 2,047 years, 38 weeks, 2 days, 20 minutes, 48 seconds.
• To count from 1 to 64,400,487,648 would take you about four thousand and ninety-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 64400487648 cubic inches would be around 334 feet tall.

Recreational maths with 64400487648

• 64400487648 backwards is 84678400446
• The number of decimal digits it has is: 11
• The sum of 64400487648's digits is 51
• More coming soon!