646013891138

Names of 646013891138

• Cardinal: 646013891138 can be written as Six hundred forty-six billion, thirteen million, eight hundred ninety-one thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 6.46013891138 × 10¹¹

Factors of 646013891138

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 81

Divisors of 646013891138

• Number of divisors d(n): 126
• Complete list of divisors:
  1 2 7 11 14 22 49 61 77 98 121 122 154 242 427 539 671 847 854 1078 1331 1342 1694 2662 2989 3721 4697 5929 5978 7381 7442 9317 9394 11858 14641 14762 18634 26047 29282 32879 40931 51667 52094 65219 65758 81191 81862 102487 103334 130438 161051 162382 182329 204974 286517 322102 361669 364658 450241 568337 573034 717409 723338 893101 900482 1127357 1136674 1434818 1771561 1786202 2005619 2254714 3151687 3543122 3978359 4011238 4952651 6251707 6303374 7891499 7956718 9824111 9905302 12400927 12503414 15782998 19648222 22061809 24801854 34668557 43761949 44123618 54479161 68768777 69337114 86806489 87523898 108065221 108958322 137537554 173612978 216130442 242679899 381354127 481381439 485359798 599270771 756456547 762708254 962762878 1198541542 1512913094 2669478889 4194895397 5295195829 5338957778 6591978481 8389790794 10590391658 13183956962 29364267779 46143849367 58728535558 92287698734 323006945569 646013891138
• Sum of all divisors σ(n): 1260611386281
• Sum of proper divisors (its aliquot sum) s(n): 614597495143
• 646013891138 is a deficient number, because the sum of its proper divisors (614597495143) is less than itself. Its deficiency is 31416395995

Bases of 646013891138

• Binary: 1001011001101001011011011011001001000010₂
• Hexadecimal: 0x96696DB242
• Base-36: 88RVZOLE

Squares and roots of 646013891138

• 646013891138 squared (646013891138²) is 417333947543259714935044
• 646013891138 cubed (646013891138³) is 269603527356403184029708427357240072
• The square root of 646013891138 is 803749.8933984379
• The cube root of 646013891138 is 8644.6474337031

Scales and comparisons

• 646,013,891,138 seconds is equal to 20,541 years, 12 weeks, 4 days, 15 hours, 5 minutes, 38 seconds.
• To count from 1 to 646,013,891,138 would take you about forty-one thousand and eighty-two 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 646013891138 cubic inches would be around 720.4 feet tall.

Recreational maths with 646013891138

• 646013891138 backwards is 831198310646
• The number of decimal digits it has is: 12
• The sum of 646013891138's digits is 50
• More coming soon!