21407139436225

Names of 21407139436225

• Cardinal: 21407139436225 can be written as Twenty-one trillion, four hundred seven billion, one hundred thirty-nine million, four hundred thirty-six thousand, two hundred twenty-five.

Scientific notation

• Scientific notation: 2.1407139436225 × 10¹³

Factors of 21407139436225

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 568

Divisors of 21407139436225

• Number of divisors d(n): 81
• Complete list of divisors:
  1 5 19 25 95 113 361 431 475 565 1805 2147 2155 2825 8189 9025 10735 10775 12769 40793 40945 48703 53675 63845 155591 185761 203965 204725 242611 243515 319225 777955 925357 928805 1019825 1213055 1217575 3529459 3889775 4609609 4626785 4644025 5503439 6065275 17581783 17647295 20990993 23048045 23133925 27517195 67059721 87908915 88236475 104565341 104954965 115240225 137585975 335298605 398828867 439544575 522826705 524774825 1676493025 1986741479 1994144335 2371982209 2614133525 7577748473 9933707395 9970721675 11859911045 37888742365 45067661971 49668536975 59299555225 189443711825 225338309855 856285577449 1126691549275 4281427887245 21407139436225
• Sum of all divisors σ(n): 28331334112809
• Sum of proper divisors (its aliquot sum) s(n): 6924194676584
• 21407139436225 is a deficient number, because the sum of its proper divisors (6924194676584) is less than itself. Its deficiency is 14482944759641

Bases of 21407139436225

• Binary: 100110111100000111100111100010001011011000001₂
• Hexadecimal: 0x13783CF116C1
• Base-36: 7L6AY3R9D

Squares and roots of 21407139436225

• 21407139436225 squared (21407139436225²) is 458265618841979610842250625
• 21407139436225 cubed (21407139436225³) is 9810156001378196143808521941872653890625
• 21407139436225 is a perfect square number. Its square root is 4626785
• The cube root of 21407139436225 is 27766.3980937047

Scales and comparisons

• 21,407,139,436,225 seconds is equal to 680,680 years, 42 weeks, 3 days, 13 hours, 10 minutes, 25 seconds.
• To count from 1 to 21,407,139,436,225 would take you about one million, seven hundred one thousand, seven hundred 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 21407139436225 cubic inches would be around 2313.9 feet tall.

Recreational maths with 21407139436225

• 21407139436225 backwards is 52263493170412
• The number of decimal digits it has is: 14
• The sum of 21407139436225's digits is 49
• More coming soon!