15381843813

Names of 15381843813

• Cardinal: 15381843813 can be written as Fifteen billion, three hundred eighty-one million, eight hundred forty-three thousand, eight hundred thirteen.

Scientific notation

• Scientific notation: 1.5381843813 × 10¹⁰

Factors of 15381843813

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6025

Divisors of 15381843813

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 7 9 19 21 27 57 63 133 171 189 399 513 829 1197 2487 3591 5167 5803 7461 15501 15751 17409 22383 36169 46503 47253 52227 98173 108507 110257 139509 141759 156681 294519 325521 330771 425277 687211 883557 976563 992313 2061633 2650671 2976939 4283443 6184899 12850329 18554697 29984101 38550987 81385417 89952303 115652961 244156251 269856909 569697919 732468753 809570727 1709093757 2197406259 5127281271 15381843813
• Sum of all divisors σ(n): 27452416000
• Sum of proper divisors (its aliquot sum) s(n): 12070572187
• 15381843813 is a deficient number, because the sum of its proper divisors (12070572187) is less than itself. Its deficiency is 3311271626

Bases of 15381843813

• Binary: 1110010100110101000100111101100101₂
• Hexadecimal: 0x394D44F65
• Base-36: 72DYAN9

Squares and roots of 15381843813

• 15381843813 squared (15381843813²) is 236601119087526378969
• 15381843813 cubed (15381843813³) is 3639361459785343837818605968797
• The square root of 15381843813 is 124023.5615236073
• The cube root of 15381843813 is 2486.9638112949

Scales and comparisons

• 15,381,843,813 seconds is equal to 489 years, 4 weeks, 6 days, 14 hours, 23 minutes, 33 seconds.
• To count from 1 to 15,381,843,813 would take you about nine hundred seventy-eight 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 15381843813 cubic inches would be around 207.2 feet tall.

Recreational maths with 15381843813

• 15381843813 backwards is 31834818351
• The number of decimal digits it has is: 11
• The sum of 15381843813's digits is 45
• More coming soon!