400390068512

Names of 400390068512

• Cardinal: 400390068512 can be written as Four hundred billion, three hundred ninety million, sixty-eight thousand, five hundred twelve.

Scientific notation

• Scientific notation: 4.00390068512 × 10¹¹

Factors of 400390068512

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 3985

Divisors of 400390068512

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 98 112 196 197 224 343 392 394 686 784 788 1372 1379 1568 1576 2401 2744 2758 3152 3779 4802 5488 5516 6304 7558 9604 9653 10976 11032 15116 16807 19208 19306 22064 26453 30232 33614 38416 38612 44128 52906 60464 67228 67571 76832 77224 105812 120928 134456 135142 154448 185171 211624 268912 270284 308896 370342 423248 472997 537824 540568 740684 744463 846496 945994 1081136 1296197 1481368 1488926 1891988 2162272 2592394 2962736 2977852 3310979 3783976 5184788 5211241 5925472 5955704 6621958 7567952 9073379 10369576 10422482 11911408 13243916 15135904 18146758 20739152 20844964 23822816 26487832 36293516 36478687 41478304 41689928 52975664 63513653 72587032 72957374 83379856 105951328 127027306 145174064 145914748 166759712 254054612 255350809 290348128 291829496 508109224 510701618 583658992 1016218448 1021403236 1167317984 1787455663 2032436896 2042806472 3574911326 4085612944 7149822652 8171225888 12512189641 14299645304 25024379282 28599290608 50048758564 57198581216 100097517128 200195034256 400390068512
• Sum of all divisors σ(n): 924550925760
• Sum of proper divisors (its aliquot sum) s(n): 524160857248
• 400390068512 is an abundant number, because the sum of its proper divisors (524160857248) is greater than itself. Its abundance is 123770788736

Bases of 400390068512

• Binary: 101110100111001000110111001100100100000₂
• Hexadecimal: 0x5D391B9920
• Base-36: 53XPWQ3K

Squares and roots of 400390068512

• 400390068512 squared (400390068512²) is 160312206963044053894144
• 400390068512 cubed (400390068512³) is 64187415529243132190750536555593728
• The square root of 400390068512 is 632763.8331257563
• The cube root of 400390068512 is 7370.4572603185

Scales and comparisons

• 400,390,068,512 seconds is equal to 12,731 years, 8 weeks, 4 days, 7 hours, 28 minutes, 32 seconds.
• To count from 1 to 400,390,068,512 would take you about twenty-five thousand, four hundred sixty-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 400390068512 cubic inches would be around 614.2 feet tall.

Recreational maths with 400390068512

• 400390068512 backwards is 215860093004
• The number of decimal digits it has is: 12
• The sum of 400390068512's digits is 38
• More coming soon!