168791009920

Names of 168791009920

• Cardinal: 168791009920 can be written as One hundred sixty-eight billion, seven hundred ninety-one million, nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.6879100992 × 10¹¹

Factors of 168791009920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 20202

Divisors of 168791009920

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 208 260 320 416 520 640 832 1040 1061 1664 2080 2122 4160 4244 5305 8320 8488 10610 13793 16976 19121 21220 27586 33952 38242 42440 55172 67904 68965 76484 84880 95605 110344 135808 137930 152968 169760 191210 220688 248573 275860 305936 339520 382420 441376 497146 551720 611872 679040 764840 882752 994292 1103440 1223744 1242865 1529680 1765504 1988584 2206880 2447488 2485730 3059360 3977168 4413760 4971460 6118720 7954336 8827520 9942920 12237440 15908672 19885840 20287381 31817344 39771680 40574762 79543360 81149524 101436905 159086720 162299048 202873810 263735953 324598096 405747620 527471906 649196192 811495240 1054943812 1298392384 1318679765 1622990480 2109887624 2596784768 2637359530 3245980960 4219775248 5274719060 6491961920 8439550496 10549438120 12983923840 16879100992 21098876240 33758201984 42197752480 84395504960 168791009920
• Sum of all divisors σ(n): 434988020880
• Sum of proper divisors (its aliquot sum) s(n): 266197010960
• 168791009920 is an abundant number, because the sum of its proper divisors (266197010960) is greater than itself. Its abundance is 97406001040

Bases of 168791009920

• Binary: 10011101001100101110100110101010000000₂
• Hexadecimal: 0x274CBA6A80
• Base-36: 25JHT4SG

Squares and roots of 168791009920

• 168791009920 squared (168791009920²) is 28490405029813538406400
• 168791009920 cubed (168791009920³) is 4808924238012074856904963391488000
• The square root of 168791009920 is 410841.8307816281
• The cube root of 168791009920 is 5526.4948615901

Scales and comparisons

• 168,791,009,920 seconds is equal to 5,367 years, 1 week, 4 days, 15 hours, 38 minutes, 40 seconds.
• To count from 1 to 168,791,009,920 would take you about ten thousand, seven hundred thirty-four 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 168791009920 cubic inches would be around 460.5 feet tall.

Recreational maths with 168791009920

• 168791009920 backwards is 029900197861
• 168791009920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 168791009920's digits is 52
• More coming soon!