51513394989

Names of 51513394989

• Cardinal: 51513394989 can be written as Fifty-one billion, five hundred thirteen million, three hundred ninety-four thousand, nine hundred eighty-nine.

Scientific notation

• Scientific notation: 5.1513394989 × 10¹⁰

Factors of 51513394989

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 529

Divisors of 51513394989

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 21 31 79 93 217 237 409 553 651 961 1227 1659 2449 2863 2883 6241 6727 7347 8589 12679 17143 18723 20181 32311 38037 43687 51429 75919 88753 96933 131061 193471 226177 227757 266259 393049 531433 580413 678531 1001641 1179147 1354297 1594299 2552569 2751343 3004923 4062891 5997601 7011487 7657707 8254029 17867983 17992803 21034461 31050871 41983207 53603949 79129639 93152613 125949621 217356097 237388917 553907473 652068291 1661722419 2453018809 7359056427 17171131663 51513394989
• Sum of all divisors σ(n): 82350999360
• Sum of proper divisors (its aliquot sum) s(n): 30837604371
• 51513394989 is a deficient number, because the sum of its proper divisors (30837604371) is less than itself. Its deficiency is 20675790618

Bases of 51513394989

• Binary: 101111111110011100000000011100101101₂
• Hexadecimal: 0xBFE70072D
• Base-36: NNXQTYL

Squares and roots of 51513394989

• 51513394989 squared (51513394989²) is 2653629863292730310121
• 51513394989 cubed (51513394989³) is 136697483302404488597515537383669
• The square root of 51513394989 is 226965.6251263613
• The cube root of 51513394989 is 3720.8319666971

Scales and comparisons

• 51,513,394,989 seconds is equal to 1,637 years, 50 weeks, 1 day, 20 hours, 23 minutes, 9 seconds.
• To count from 1 to 51,513,394,989 would take you about three thousand, two hundred seventy-five 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 51513394989 cubic inches would be around 310.1 feet tall.

Recreational maths with 51513394989

• 51513394989 backwards is 98949331515
• The number of decimal digits it has is: 11
• The sum of 51513394989's digits is 57
• More coming soon!