159722128818

Names of 159722128818

• Cardinal: 159722128818 can be written as One hundred fifty-nine billion, seven hundred twenty-two million, one hundred twenty-eight thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 1.59722128818 × 10¹¹

Factors of 159722128818

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 13469

Divisors of 159722128818

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 42 49 63 98 126 147 294 441 882 13457 26914 40371 80742 94199 121113 188398 242226 282597 565194 659393 847791 1318786 1695582 1978179 3956358 5934537 11869074 181090849 362181698 543272547 1086545094 1267635943 1629817641 2535271886 3259635282 3802907829 7605815658 8873451601 11408723487 17746903202 22817446974 26620354803 53240709606 79861064409 159722128818
• Sum of all divisors σ(n): 402594874461
• Sum of proper divisors (its aliquot sum) s(n): 242872745643
• 159722128818 is an abundant number, because the sum of its proper divisors (242872745643) is greater than itself. Its abundance is 83150616825

Bases of 159722128818

• Binary: 10010100110000001011100100010110110010₂
• Hexadecimal: 0x25302E45B2
• Base-36: 21DIFJCI

Squares and roots of 159722128818

• 159722128818 squared (159722128818²) is 25511158434153786077124
• 159722128818 cubed (159722128818³) is 4074696533716318190632814410959432
• The square root of 159722128818 is 399652.5100859495
• The cube root of 159722128818 is 5425.6906686387

Scales and comparisons

• 159,722,128,818 seconds is equal to 5,078 years, 34 weeks, 5 days, 18 hours, 18 seconds.
• To count from 1 to 159,722,128,818 would take you about ten thousand, one hundred fifty-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 159722128818 cubic inches would be around 452.1 feet tall.

Recreational maths with 159722128818

• 159722128818 backwards is 818821227951
• The number of decimal digits it has is: 12
• The sum of 159722128818's digits is 54
• More coming soon!