20721013118

Names of 20721013118

• Cardinal: 20721013118 can be written as Twenty billion, seven hundred twenty-one million, thirteen thousand, one hundred eighteen.

Scientific notation

• Scientific notation: 2.0721013118 × 10¹⁰

Factors of 20721013118

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1729

Divisors of 20721013118

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 13 26 31 43 62 86 403 547 559 806 1093 1094 1118 1333 2186 2666 7111 14209 14222 16957 17329 23521 28418 33883 33914 34658 46999 47042 67766 93998 220441 305773 440479 440882 597871 610987 611546 729151 880958 1195742 1221974 1456969 1458302 2913938 7772323 9478963 15544646 18534001 18940597 18957926 25708453 37068002 37881194 51416906 240942013 334209889 481884026 668419778 796962043 1593924086 10360506559 20721013118
• Sum of all divisors σ(n): 35452741632
• Sum of proper divisors (its aliquot sum) s(n): 14731728514
• 20721013118 is a deficient number, because the sum of its proper divisors (14731728514) is less than itself. Its deficiency is 5989284604

Bases of 20721013118

• Binary: 10011010011000100011001000101111110₂
• Hexadecimal: 0x4D311917E
• Base-36: 9IOR81Q

Squares and roots of 20721013118

• 20721013118 squared (20721013118²) is 429360384636328081924
• 20721013118 cubed (20721013118³) is 8896782162398879844898982679032
• The square root of 20721013118 is 143947.9528093401
• The cube root of 20721013118 is 2746.6521515719

Scales and comparisons

• 20,721,013,118 seconds is equal to 658 years, 44 weeks, 6 days, 12 hours, 58 minutes, 38 seconds.
• To count from 1 to 20,721,013,118 would take you about one thousand, three hundred seventeen 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 20721013118 cubic inches would be around 228.9 feet tall.

Recreational maths with 20721013118

• 20721013118 backwards is 81131012702
• 20721013118 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20721013118's digits is 26
• More coming soon!