20817931672

Names of 20817931672

• Cardinal: 20817931672 can be written as Twenty billion, eight hundred seventeen million, nine hundred thirty-one thousand, six hundred seventy-two.

Scientific notation

• Scientific notation: 2.0817931672 × 10¹⁰

Factors of 20817931672

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 589

Divisors of 20817931672

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 17 23 34 46 68 92 136 184 391 529 547 782 1058 1094 1564 2116 2188 3128 4232 4376 8993 9299 12167 12581 17986 18598 24334 25162 35972 37196 48668 50324 71944 74392 97336 100648 206839 213877 279841 289363 413678 427754 559682 578726 827356 855508 1119364 1157452 1654712 1711016 2238728 2314904 4757297 4919171 6655349 9514594 9838342 13310698 19029188 19676684 26621396 38058376 39353368 53242792 113140933 153073027 226281866 306146054 452563732 612292108 905127464 1224584216 2602241459 5204482918 10408965836 20817931672
• Sum of all divisors σ(n): 43287325560
• Sum of proper divisors (its aliquot sum) s(n): 22469393888
• 20817931672 is an abundant number, because the sum of its proper divisors (22469393888) is greater than itself. Its abundance is 1651462216

Bases of 20817931672

• Binary: 10011011000110110000110110110011000₂
• Hexadecimal: 0x4D8D86D98
• Base-36: 9KAGIVS

Squares and roots of 20817931672

• 20817931672 squared (20817931672²) is 433386279100060715584
• 20817931672 cubed (20817931672³) is 9022205945887385628079137576448
• The square root of 20817931672 is 144284.2045131761
• The cube root of 20817931672 is 2750.9278047129

Scales and comparisons

• 20,817,931,672 seconds is equal to 661 years, 49 weeks, 1 day, 6 hours, 47 minutes, 52 seconds.
• To count from 1 to 20,817,931,672 would take you about one thousand, three hundred twenty-three 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 20817931672 cubic inches would be around 229.2 feet tall.

Recreational maths with 20817931672

• 20817931672 backwards is 27613971802
• 20817931672 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20817931672's digits is 46
• More coming soon!