638946616128

Names of 638946616128

• Cardinal: 638946616128 can be written as Six hundred thirty-eight billion, nine hundred forty-six million, six hundred sixteen thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 6.38946616128 × 10¹¹

Factors of 638946616128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 89286

Divisors of 638946616128

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 41 48 64 82 96 123 164 192 246 328 492 656 919 984 1312 1838 1968 2624 2757 3676 3936 5514 7352 7872 11028 14704 22056 29408 37679 44112 58816 75358 88224 88321 113037 150716 176448 176642 226074 264963 301432 353284 452148 529926 602864 706568 904296 1059852 1205728 1413136 1808592 2119704 2411456 2826272 3617184 3621161 4239408 5652544 7234368 7242322 8478816 10863483 14484644 16957632 21726966 28969288 43453932 57938576 81166999 86907864 115877152 162333998 173815728 231754304 243500997 324667996 347631456 487001994 649335992 695262912 974003988 1298671984 1948007976 2597343968 3327846959 3896015952 5194687936 6655693918 7792031904 9983540877 13311387836 15584063808 19967081754 26622775672 39934163508 53245551344 79868327016 106491102688 159736654032 212982205376 319473308064 638946616128
• Sum of all divisors σ(n): 1733683136640
• Sum of proper divisors (its aliquot sum) s(n): 1094736520512
• 638946616128 is an abundant number, because the sum of its proper divisors (1094736520512) is greater than itself. Its abundance is 455789904384

Bases of 638946616128

• Binary: 1001010011000100001011111010001101000000₂
• Hexadecimal: 0x94C42FA340
• Base-36: 85J0BGAO

Squares and roots of 638946616128

• 638946616128 squared (638946616128²) is 408252778261421789712384
• 638946616128 cubed (638946616128³) is 260851731194990171502853359175729152
• The square root of 638946616128 is 799341.3639540995
• The cube root of 638946616128 is 8613.0081497131

Scales and comparisons

• 638,946,616,128 seconds is equal to 20,316 years, 27 weeks, 2 days, 11 hours, 8 minutes, 48 seconds.
• To count from 1 to 638,946,616,128 would take you about forty thousand, six hundred thirty-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 638946616128 cubic inches would be around 717.8 feet tall.

Recreational maths with 638946616128

• 638946616128 backwards is 821616649836
• The number of decimal digits it has is: 12
• The sum of 638946616128's digits is 60
• More coming soon!