21315416004

Names of 21315416004

• Cardinal: 21315416004 can be written as Twenty-one billion, three hundred fifteen million, four hundred sixteen thousand and four.

Scientific notation

• Scientific notation: 2.1315416004 × 10¹⁰

Factors of 21315416004

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8116

Divisors of 21315416004

• Number of divisors d(n): 45
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 8111 16222 24333 32444 48666 72999 97332 145998 218997 291996 437994 656991 875988 1313982 2627964 65788321 131576642 197364963 263153284 394729926 592094889 789459852 1184189778 1776284667 2368379556 3552569334 5328854001 7105138668 10657708002 21315416004
• Sum of all divisors σ(n): 55729578751
• Sum of proper divisors (its aliquot sum) s(n): 34414162747
• 21315416004 is an abundant number, because the sum of its proper divisors (34414162747) is greater than itself. Its abundance is 13098746743

Bases of 21315416004

• Binary: 10011110110011111110110111111000100₂
• Hexadecimal: 0x4F67F6FC4
• Base-36: 9SINC90

Squares and roots of 21315416004

• 21315416004 squared (21315416004²) is 454346959423579328016
• 21315416004 cubed (21315416004³) is 9684594450266101423355811968064
• 21315416004 is a perfect square number. Its square root is 145998
• The cube root of 21315416004 is 2772.6684310341

Scales and comparisons

• 21,315,416,004 seconds is equal to 677 years, 39 weeks, 5 days, 4 hours, 53 minutes, 24 seconds.
• To count from 1 to 21,315,416,004 would take you about one thousand, three hundred fifty-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 21315416004 cubic inches would be around 231.1 feet tall.

Recreational maths with 21315416004

• 21315416004 backwards is 40061451312
• 21315416004 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21315416004's digits is 27
• More coming soon!