20400372725

Names of 20400372725

• Cardinal: 20400372725 can be written as Twenty billion, four hundred million, three hundred seventy-two thousand, seven hundred twenty-five.

Scientific notation

• Scientific notation: 2.0400372725 × 10¹⁰

Factors of 20400372725

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 126

Divisors of 20400372725

• Number of divisors d(n): 72
• Complete list of divisors:
  1 5 17 25 37 67 85 185 289 335 425 629 925 1139 1445 1675 2479 3145 4489 4913 5695 7225 10693 12395 15725 19363 22445 24565 28475 42143 53465 61975 76313 96815 112225 122825 166093 181781 210715 267325 329171 381565 484075 716431 830465 908905 1053575 1297321 1645855 1907825 2823581 3582155 4152325 4544525 6486605 8229275 12179327 14117905 17910775 22054457 32433025 48000877 60896635 70589525 110272285 240004385 304483175 551361425 816014909 1200021925 4080074545 20400372725
• Sum of all divisors σ(n): 28021722120
• Sum of proper divisors (its aliquot sum) s(n): 7621349395
• 20400372725 is a deficient number, because the sum of its proper divisors (7621349395) is less than itself. Its deficiency is 12779023330

Bases of 20400372725

• Binary: 10010111111111101001111101111110101₂
• Hexadecimal: 0x4BFF4FBF5
• Base-36: 9DDUSC5

Squares and roots of 20400372725

• 20400372725 squared (20400372725²) is 416175207318923925625
• 20400372725 cubed (20400372725³) is 8490129348210196028670178578125
• The square root of 20400372725 is 142829.8733633829
• The cube root of 20400372725 is 2732.4110570341

Scales and comparisons

• 20,400,372,725 seconds is equal to 648 years, 34 weeks, 5 days, 10 hours, 12 minutes, 5 seconds.
• To count from 1 to 20,400,372,725 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 20400372725 cubic inches would be around 227.7 feet tall.

Recreational maths with 20400372725

• 20400372725 backwards is 52727300402
• The number of decimal digits it has is: 11
• The sum of 20400372725's digits is 32
• More coming soon!