18513123820135

Names of 18513123820135

• Cardinal: 18513123820135 can be written as Eighteen trillion, five hundred thirteen billion, one hundred twenty-three million, eight hundred twenty thousand, one hundred thirty-five.

Scientific notation

• Scientific notation: 1.8513123820135 × 10¹³

Factors of 18513123820135

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 124184

Divisors of 18513123820135

• Number of divisors d(n): 64
• Complete list of divisors:
  1 5 7 31 35 127 155 217 635 889 1085 1093 3937 4445 5465 7651 19685 27559 33883 38255 122921 137795 138811 169415 237181 614605 694055 860447 971677 1185905 3810551 4302235 4303141 4858385 15610967 19052755 21515705 26673857 30121987 78054835 109276769 133369285 134352653 150609935 483939977 546383845 671763265 940468571 2419699885 3387579839 4164932243 4702342855 16937899195 17062786931 20824661215 29154525701 85313934655 119439508517 145772628505 528946394861 597197542585 2644731974305 3702624764027 18513123820135
• Sum of all divisors σ(n): 26439188742144
• Sum of proper divisors (its aliquot sum) s(n): 7926064922009
• 18513123820135 is a deficient number, because the sum of its proper divisors (7926064922009) is less than itself. Its deficiency is 10587058898126

Bases of 18513123820135

• Binary: 100001101011001101100001010110100001001100111₂
• Hexadecimal: 0x10D66C2B4267
• Base-36: 6K8T7XEG7

Squares and roots of 18513123820135

• 18513123820135 squared (18513123820135²) is 342735753579649935831418225
• 18513123820135 cubed (18513123820135³) is 6345109443607336821035352986966860960375
• The square root of 18513123820135 is 4302687.9761533953
• The cube root of 18513123820135 is 26454.1148849947

Scales and comparisons

• 18,513,123,820,135 seconds is equal to 588,660 years, 3 weeks, 5 days, 10 hours, 28 minutes, 55 seconds.
• To count from 1 to 18,513,123,820,135 would take you about one million, four hundred seventy-one thousand, six hundred fifty 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 18513123820135 cubic inches would be around 2204.5 feet tall.

Recreational maths with 18513123820135

• 18513123820135 backwards is 53102832131581
• The number of decimal digits it has is: 14
• The sum of 18513123820135's digits is 43
• More coming soon!