20401659138

Names of 20401659138

• Cardinal: 20401659138 can be written as Twenty billion, four hundred one million, six hundred fifty-nine thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 2.0401659138 × 10¹⁰

Factors of 20401659138

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 11311

Divisors of 20401659138

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 7 14 21 42 47 94 141 282 329 658 987 1009 1974 2018 3027 6054 7063 10243 14126 20486 21189 30729 42378 47423 61458 71701 94846 142269 143402 215103 284538 331961 430206 481421 663922 962842 995883 1444263 1991766 2888526 3369947 6739894 10109841 10335187 20219682 20670374 31005561 62011122 72346309 144692618 217038927 434077854 485753789 971507578 1457261367 2914522734 3400276523 6800553046 10200829569 20401659138
• Sum of all divisors σ(n): 47676395520
• Sum of proper divisors (its aliquot sum) s(n): 27274736382
• 20401659138 is an abundant number, because the sum of its proper divisors (27274736382) is greater than itself. Its abundance is 6873077244

Bases of 20401659138

• Binary: 10011000000000010001001110100000010₂
• Hexadecimal: 0x4C0089D02
• Base-36: 9DEMCXU

Squares and roots of 20401659138

• 20401659138 squared (20401659138²) is 416227695583138903044
• 20401659138 cubed (20401659138³) is 8491735569082428040010918616072
• The square root of 20401659138 is 142834.3765975123
• The cube root of 20401659138 is 2732.4684895669

Scales and comparisons

• 20,401,659,138 seconds is equal to 648 years, 36 weeks, 6 days, 7 hours, 32 minutes, 18 seconds.
• To count from 1 to 20,401,659,138 would take you about one thousand, two hundred ninety-seven 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 20401659138 cubic inches would be around 227.7 feet tall.

Recreational maths with 20401659138

• 20401659138 backwards is 83195610402
• The number of decimal digits it has is: 11
• The sum of 20401659138's digits is 39
• More coming soon!