31900821385
31,900,821,385 is an odd composite number composed of four prime numbers multiplied together.
31900821385 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.
Prime factorization of 31900821385:
5 × 173 × 612 × 349
(5 × 17 × 17 × 17 × 61 × 61 × 349)See below for interesting mathematical facts about the number 31900821385 from the Numbermatics database.
Names of 31900821385
- Cardinal: 31900821385 can be written as Thirty-one billion, nine hundred million, eight hundred twenty-one thousand, three hundred eighty-five.
Scientific notation
- Scientific notation: 3.1900821385 × 1010
Factors of 31900821385
Divisors of 31900821385
- Number of divisors d(n): 48
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Complete list of divisors:
1 5 17 61 85 289 305 349 1037 1445 1745 3721 4913 5185 5933 17629 18605 21289 24565 29665 63257 88145 100861 106445 299693 316285 361913 504305 1075369 1298629 1498465 1714637 1809565 5376845 6152521 6493145 8573185 18281273 22076693 30762605 91406365 104592857 110383465 375303781 522964285 1876518905 6380164277 31900821385
- Sum of all divisors σ(n): 41469246000
- Sum of proper divisors (its aliquot sum) s(n): 9568424615
- 31900821385 is a deficient number, because the sum of its proper divisors (9568424615) is less than itself. Its deficiency is 22332396770
Bases of 31900821385
- Binary: 111011011010110111111100111100010012
- Hexadecimal: 0x76D6FE789
- Base-36: ENKXBBD
Squares and roots of 31900821385
- 31900821385 squared (319008213852) is 1017662405037673318225
- 31900821385 cubed (319008213853) is 32464266613336340720675990241625
-
The
square root of 31900821385 is 178608.0104166663 -
The
cube root of 31900821385 is 3171.5187879475
Scales and comparisons
How big is 31900821385?- 31,900,821,385 seconds is equal to 1,014 years, 18 weeks, 11 hours, 16 minutes, 25 seconds.
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To count from 1 to 31,900,821,385 would take you about two thousand and twenty-eight 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 31900821385 cubic inches would be around 264.3 feet tall.
Recreational maths with 31900821385
- 31900821385 backwards is 58312800913
- The number of decimal digits it has is: 11
- The sum of 31900821385's digits is 40
- More coming soon!
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