21317281140

Names of 21317281140

• Cardinal: 21317281140 can be written as Twenty-one billion, three hundred seventeen million, two hundred eighty-one thousand, one hundred forty.

Scientific notation

• Scientific notation: 2.131728114 × 10¹⁰

Factors of 21317281140

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 422498

Divisors of 21317281140

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 348 435 580 841 870 1682 1740 2523 3364 4205 5046 8410 10092 12615 16820 25230 50460 422459 844918 1267377 1689836 2112295 2534754 4224590 5069508 6336885 8449180 12251311 12673770 24502622 25347540 36753933 49005244 61256555 73507866 122513110 147015732 183769665 245026220 355288019 367539330 710576038 735078660 1065864057 1421152076 1776440095 2131728114 3552880190 4263456228 5329320285 7105760380 10658640570 21317281140
• Sum of all divisors σ(n): 61817726880
• Sum of proper divisors (its aliquot sum) s(n): 40500445740
• 21317281140 is an abundant number, because the sum of its proper divisors (40500445740) is greater than itself. Its abundance is 19183164600

Bases of 21317281140

• Binary: 10011110110100110111110010101110100₂
• Hexadecimal: 0x4F69BE574
• Base-36: 9SJRBEC

Squares and roots of 21317281140

• 21317281140 squared (21317281140²) is 454426475201799699600
• 21317281140 cubed (21317281140³) is 9687136929336002430340745544000
• The square root of 21317281140 is 146004.3873998313
• The cube root of 21317281140 is 2772.7492997801

Scales and comparisons

• 21,317,281,140 seconds is equal to 677 years, 42 weeks, 5 days, 18 hours, 59 minutes.
• To count from 1 to 21,317,281,140 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 21317281140 cubic inches would be around 231.1 feet tall.

Recreational maths with 21317281140

• 21317281140 backwards is 04118271312
• 21317281140 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21317281140's digits is 30
• More coming soon!