9901621712

Names of 9901621712

• Cardinal: 9901621712 can be written as Nine billion, nine hundred one million, six hundred twenty-one thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 9.901621712 × 10⁹

Factors of 9901621712

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2542

Divisors of 9901621712

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 16 17 31 34 62 68 124 136 248 272 496 527 631 1054 1262 1861 2108 2524 3722 4216 5048 7444 8432 10096 10727 14888 19561 21454 29776 31637 39122 42908 57691 63274 78244 85816 115382 126548 156488 171632 230764 253096 312976 332537 461528 506192 665074 923056 980747 1174291 1330148 1961494 2348582 2660296 3922988 4697164 5320592 7845976 9394328 15691952 18788656 19962947 36403021 39925894 72806042 79851788 145612084 159703576 291224168 319407152 582448336 618851357 1237702714 2475405428 4950810856 9901621712
• Sum of all divisors σ(n): 21012655104
• Sum of proper divisors (its aliquot sum) s(n): 11111033392
• 9901621712 is an abundant number, because the sum of its proper divisors (11111033392) is greater than itself. Its abundance is 1209411680

Bases of 9901621712

• Binary: 1001001110001011101100000111010000₂
• Hexadecimal: 0x24E2EC1D0
• Base-36: 4JR647K

Squares and roots of 9901621712

• 9901621712 squared (9901621712²) is 98042112527549810944
• 9901621712 cubed (9901621712³) is 970775910093134406204605616128
• The square root of 9901621712 is 99506.8927863793
• The cube root of 9901621712 is 2147.3464079815

Scales and comparisons

• 9,901,621,712 seconds is equal to 314 years, 43 weeks, 5 days, 2 hours, 28 minutes, 32 seconds.
• To count from 1 to 9,901,621,712 would take you about six hundred twenty-nine 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 9901621712 cubic inches would be around 178.9 feet tall.

Recreational maths with 9901621712

• 9901621712 backwards is 2171261099
• The number of decimal digits it has is: 10
• The sum of 9901621712's digits is 38
• More coming soon!