15538985085440

Names of 15538985085440

• Cardinal: 15538985085440 can be written as Fifteen trillion, five hundred thirty-eight billion, nine hundred eighty-five million, eighty-five thousand, four hundred forty.

Scientific notation

• Scientific notation: 1.553898508544 × 10¹³

Factors of 15538985085440

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 6069916056

Divisors of 15538985085440

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1280 2560 6069916049 12139832098 24279664196 30349580245 48559328392 60699160490 97118656784 121398320980 194237313568 242796641960 388474627136 485593283920 776949254272 971186567840 1553898508544 1942373135680 3107797017088 3884746271360 7769492542720 15538985085440
• Sum of all divisors σ(n): 37257144714900
• Sum of proper divisors (its aliquot sum) s(n): 21718159629460
• 15538985085440 is an abundant number, because the sum of its proper divisors (21718159629460) is greater than itself. Its abundance is 6179174544020

Bases of 15538985085440

• Binary: 11100010000111110011101011111010101000000000₂
• Hexadecimal: 0xE21F3AFAA00
• Base-36: 5IAIEIJNK

Squares and roots of 15538985085440

• 15538985085440 squared (15538985085440²) is 241460057485526764099993600
• 15538985085440 cubed (15538985085440³) is 3752044231997085416011745775199453184000
• The square root of 15538985085440 is 3941951.9384995043
• The cube root of 15538985085440 is 24954.0409412723

Scales and comparisons

• 15,538,985,085,440 seconds is equal to 494,091 years, 34 weeks, 2 days, 9 hours, 57 minutes, 20 seconds.
• To count from 1 to 15,538,985,085,440 would take you about one million, two hundred thirty-five thousand, two hundred twenty-nine 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 15538985085440 cubic inches would be around 2079.5 feet tall.

Recreational maths with 15538985085440

• 15538985085440 backwards is 04458058983551
• The number of decimal digits it has is: 14
• The sum of 15538985085440's digits is 65
• More coming soon!