181431948816

Names of 181431948816

• Cardinal: 181431948816 can be written as One hundred eighty-one billion, four hundred thirty-one million, nine hundred forty-eight thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.81431948816 × 10¹¹

Factors of 181431948816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1990649

Divisors of 181431948816

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 211 216 422 432 633 844 1266 1688 1899 2532 3376 3798 5064 5697 7596 10128 11394 15192 22788 30384 45576 91152 1990433 3980866 5971299 7961732 11942598 15923464 17913897 23885196 31846928 35827794 47770392 53741691 71655588 95540784 107483382 143311176 214966764 286622352 419981363 429933528 839962726 859867056 1259944089 1679925452 2519888178 3359850904 3779832267 5039776356 6719701808 7559664534 10079552712 11339496801 15119329068 20159105424 22678993602 30238658136 45357987204 60477316272 90715974408 181431948816
• Sum of all divisors σ(n): 523245289920
• Sum of proper divisors (its aliquot sum) s(n): 341813341104
• 181431948816 is an abundant number, because the sum of its proper divisors (341813341104) is greater than itself. Its abundance is 160381392288

Bases of 181431948816

• Binary: 10101000111110001011111101011000010000₂
• Hexadecimal: 0x2A3E2FD610
• Base-36: 2BCJWBO0

Squares and roots of 181431948816

• 181431948816 squared (181431948816²) is 32917552051171643801856
• 181431948816 cubed (181431948816³) is 5972295618896189491088921437802496
• The square root of 181431948816 is 425948.2935944221
• The cube root of 181431948816 is 5661.1490383197

Scales and comparisons

• 181,431,948,816 seconds is equal to 5,768 years, 50 weeks, 4 days, 19 hours, 33 minutes, 36 seconds.
• To count from 1 to 181,431,948,816 would take you about eleven thousand, five hundred thirty-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 181431948816 cubic inches would be around 471.8 feet tall.

Recreational maths with 181431948816

• 181431948816 backwards is 618849134181
• 181431948816 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 181431948816's digits is 54
• More coming soon!