399121657128949212

Names of 399121657128949212

• Cardinal: 399121657128949212 can be written as Three hundred ninety-nine quadrillion, one hundred twenty-one trillion, six hundred fifty-seven billion, one hundred twenty-eight million, nine hundred forty-nine thousand, two hundred twelve.

Scientific notation

• Scientific notation: 3.99121657128949212 × 10¹⁷

Factors of 399121657128949212

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 16823539754877

Divisors of 399121657128949212

• Number of divisors d(n): 36
• Complete list of divisors:
  1 2 3 4 6 9 12 18 36 659 1318 1977 2636 3954 5931 7908 11862 23724 16823539754213 33647079508426 50470619262639 67294159016852 100941238525278 151411857787917 201882477050556 302823715575834 605647431151668 11086712698026367 22173425396052734 33260138094079101 44346850792105468 66520276188158202 99780414282237303 133040552376316404 199560828564474606 399121657128949212
• Sum of all divisors σ(n): 1010421797638092840
• Sum of proper divisors (its aliquot sum) s(n): 611300140509143628
• 399121657128949212 is an abundant number, because the sum of its proper divisors (611300140509143628) is greater than itself. Its abundance is 212178483380194416

Bases of 399121657128949212

• Binary: 10110001001111101110000100001010011010101100001010111011100₂
• Hexadecimal: 0x589F708535615DC
• Base-36: 315WTI1YRNJ0

Squares and roots of 399121657128949212

• 399121657128949212 squared (399121657128949212²) is 159298097189358495341196467275420944
• 399121657128949212 cubed (399121657128949212³) is 63579320527705169533272307141265238134133525697096128
• The square root of 399121657128949212 is 631760759.4089310103
• The cube root of 399121657128949212 is 736266.5973647379

Scales and comparisons

• 399,121,657,128,949,212 seconds is equal to 12,690,834,132 years, 18 weeks, 3 days, 15 hours, 40 minutes, 12 seconds.
• To count from 1 to 399,121,657,128,949,212 would take you about thirty-eight billion, seventy-two million, five hundred two thousand, three 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 399121657128949212 cubic inches would be around 61355.5 feet tall.

Recreational maths with 399121657128949212

• 399121657128949212 backwards is 212949821756121993
• The number of decimal digits it has is: 18
• The sum of 399121657128949212's digits is 81
• More coming soon!