20388717072

Names of 20388717072

• Cardinal: 20388717072 can be written as Twenty billion, three hundred eighty-eight million, seven hundred seventeen thousand and seventy-two.

Scientific notation

• Scientific notation: 2.0388717072 × 10¹⁰

Factors of 20388717072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1840

Divisors of 20388717072

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 281 461 562 843 922 1093 1124 1383 1686 1844 2186 2248 2529 2766 3279 3372 3688 4149 4372 4496 5058 5532 6558 6744 7376 8298 8744 9837 10116 11064 13116 13488 16596 17488 19674 20232 22128 26232 33192 39348 40464 52464 66384 78696 129541 157392 259082 307133 388623 503873 518164 614266 777246 921399 1007746 1036328 1165869 1228532 1511619 1554492 1842798 2015492 2072656 2331738 2457064 2764197 3023238 3108984 3685596 4030984 4534857 4663476 4914128 5528394 6046476 6217968 7371192 8061968 9069714 9326952 11056788 12092952 14742384 18139428 18653904 22113576 24185904 36278856 44227152 72557712 141588313 283176626 424764939 566353252 849529878 1132706504 1274294817 1699059756 2265413008 2548589634 3398119512 5097179268 6796239024 10194358536 20388717072
• Sum of all divisors σ(n): 57439870488
• Sum of proper divisors (its aliquot sum) s(n): 37051153416
• 20388717072 is an abundant number, because the sum of its proper divisors (37051153416) is greater than itself. Its abundance is 16662436344

Bases of 20388717072

• Binary: 10010111111010000110010001000010000₂
• Hexadecimal: 0x4BF432210
• Base-36: 9D6WYS0

Squares and roots of 20388717072

• 20388717072 squared (20388717072²) is 415699783842064253184
• 20388717072 cubed (20388717072³) is 8475585279647405190613551157248
• The square root of 20388717072 is 142789.0649594709
• The cube root of 20388717072 is 2731.8905746733

Scales and comparisons

• 20,388,717,072 seconds is equal to 648 years, 15 weeks, 3 days, 12 hours, 31 minutes, 12 seconds.
• To count from 1 to 20,388,717,072 would take you about one thousand, two hundred ninety-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 20388717072 cubic inches would be around 227.7 feet tall.

Recreational maths with 20388717072

• 20388717072 backwards is 27071788302
• The number of decimal digits it has is: 11
• The sum of 20388717072's digits is 45
• More coming soon!