399845134161

Names of 399845134161

• Cardinal: 399845134161 can be written as Three hundred ninety-nine billion, eight hundred forty-five million, one hundred thirty-four thousand, one hundred sixty-one.

Scientific notation

• Scientific notation: 3.99845134161 × 10¹¹

Factors of 399845134161

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 32764

Divisors of 399845134161

• Number of divisors d(n): 84
• Complete list of divisors:
  1 3 9 11 27 33 81 99 121 139 243 297 363 417 729 891 1089 1251 1529 2673 3267 3753 4587 8019 9801 11259 13761 16819 29403 32611 33777 41283 50457 88209 97833 101331 123849 151371 293499 358721 371547 454113 880497 1076163 1114641 1362339 2641491 3228489 3945931 4087017 4532929 7924473 9685467 11837793 12261051 13598787 23773419 29056401 35513379 40796361 49862219 87169203 106540137 122389083 149586657 261507609 319620411 367167249 448759971 548484409 958861233 1101501747 1346279913 1645453227 2876583699 3304505241 4038839739 4936359681 12116519217 14809079043 36349557651 44427237129 133281711387 399845134161
• Sum of all divisors σ(n): 663708335920
• Sum of proper divisors (its aliquot sum) s(n): 263863201759
• 399845134161 is a deficient number, because the sum of its proper divisors (263863201759) is less than itself. Its deficiency is 135981932402

Bases of 399845134161

• Binary: 101110100011000101000001000111101010001₂
• Hexadecimal: 0x5D18A08F51
• Base-36: 53OPGW29

Squares and roots of 399845134161

• 399845134161 squared (399845134161²) is 159876131312228089173921
• 399845134161 cubed (399845134161³) is 63925693173679493295579113907415281
• The square root of 399845134161 is 632333.0879852801
• The cube root of 399845134161 is 7367.1119901565

Scales and comparisons

• 399,845,134,161 seconds is equal to 12,713 years, 43 weeks, 4 days, 4 hours, 49 minutes, 21 seconds.
• To count from 1 to 399,845,134,161 would take you about twenty-five thousand, four hundred twenty-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 399845134161 cubic inches would be around 613.9 feet tall.

Recreational maths with 399845134161

• 399845134161 backwards is 161431548993
• The number of decimal digits it has is: 12
• The sum of 399845134161's digits is 54
• More coming soon!