15998739643872

Names of 15998739643872

• Cardinal: 15998739643872 can be written as Fifteen trillion, nine hundred ninety-eight billion, seven hundred thirty-nine million, six hundred forty-three thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.5998739643872 × 10¹³

Factors of 15998739643872

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 18517059778

Divisors of 15998739643872

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 18517059773 37034119546 55551179319 74068239092 111102358638 148136478184 166653537957 222204717276 296272956368 333307075914 444409434552 499960613871 592545912736 666614151828 888818869104 999921227742 1333228303656 1777637738208 1999842455484 2666456607312 3999684910968 5332913214624 7999369821936 15998739643872
• Sum of all divisors σ(n): 46662990630480
• Sum of proper divisors (its aliquot sum) s(n): 30664250986608
• 15998739643872 is an abundant number, because the sum of its proper divisors (30664250986608) is greater than itself. Its abundance is 14665511342736

Bases of 15998739643872

• Binary: 11101000110011111111001100010111110111100000₂
• Hexadecimal: 0xE8CFF317DE0
• Base-36: 5O5PWIBC0

Squares and roots of 15998739643872

• 15998739643872 squared (15998739643872²) is 255959670192401569387152384
• 15998739643872 cubed (15998739643872³) is 4095032122739577257937424229288355790848
• The square root of 15998739643872 is 3999842.4523813435
• The cube root of 15998739643872 is 25197.7593350169

Scales and comparisons

• 15,998,739,643,872 seconds is equal to 508,710 years, 22 weeks, 3 days, 17 hours, 31 minutes, 12 seconds.
• To count from 1 to 15,998,739,643,872 would take you about one million, two hundred seventy-one thousand, seven hundred seventy-six 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 15998739643872 cubic inches would be around 2099.8 feet tall.

Recreational maths with 15998739643872

• 15998739643872 backwards is 27834693789951
• The number of decimal digits it has is: 14
• The sum of 15998739643872's digits is 81
• More coming soon!