31072868385
31,072,868,385 is an odd composite number composed of seven prime numbers multiplied together.
What does the number 31072868385 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 128 divisors.
31072868385 is an odd composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 31072868385:
3 × 5 × 13 × 61 × 67 × 127 × 307
See below for interesting mathematical facts about the number 31072868385 from the Numbermatics database.
Names of 31072868385
- Cardinal: 31072868385 can be written as Thirty-one billion, seventy-two million, eight hundred sixty-eight thousand, three hundred eighty-five.
Scientific notation
- Scientific notation: 3.1072868385 × 1010
Factors of 31072868385
Divisors of 31072868385
- Number of divisors d(n): 128
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Complete list of divisors:
1 3 5 13 15 39 61 65 67 127 183 195 201 305 307 335 381 635 793 871 915 921 1005 1535 1651 1905 2379 2613 3965 3991 4087 4355 4605 4953 7747 8255 8509 11895 11973 12261 13065 18727 19955 20435 20569 23241 24765 25527 38735 38989 42545 53131 56181 59865 61305 61707 93635 100711 102845 110617 116205 116967 127635 159393 194945 243451 265655 267397 280905 302133 308535 331851 503555 506857 519049 553085 584835 730353 796965 802191 1217255 1254709 1336985 1510665 1520571 1557147 1659255 2378329 2534285 2595245 2612263 3651765 3764127 4010955 6273545 6747637 7134987 7602855 7785735 7836789 11891645 13061315 16311217 18820635 20242911 30918277 33738185 33959419 35674935 39183945 48933651 81556085 92754831 101214555 101878257 154591385 159348043 169797095 244668255 463774155 478044129 509391285 796740215 2071524559 2390220645 6214573677 10357622795 31072868385
- Sum of all divisors σ(n): 55847092224
- Sum of proper divisors (its aliquot sum) s(n): 24774223839
- 31072868385 is a deficient number, because the sum of its proper divisors (24774223839) is less than itself. Its deficiency is 6298644546
Bases of 31072868385
- Binary: 111001111000001011001011000001000012
- Hexadecimal: 0x73C165821
- Base-36: E9VZEOX
Squares and roots of 31072868385
- 31072868385 squared (310728683852) is 965523149671532508225
- 31072868385 cubed (310728683853) is 30001573752414185609324354966625
-
The
square root of 31072868385 is 176274.9794639047 -
The
cube root of 31072868385 is 3143.8400955383
Scales and comparisons
How big is 31072868385?- 31,072,868,385 seconds is equal to 988 years, 1 week, 16 hours, 19 minutes, 45 seconds.
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To count from 1 to 31,072,868,385 would take you about one thousand, nine hundred seventy-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 31072868385 cubic inches would be around 262 feet tall.
Recreational maths with 31072868385
- 31072868385 backwards is 58386827013
- The number of decimal digits it has is: 11
- The sum of 31072868385's digits is 51
- More coming soon!
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