813142155
813,142,155 is an odd composite number composed of six prime numbers multiplied together.
813142155 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 813142155:
3 × 5 × 7 × 37 × 311 × 673
See below for interesting mathematical facts about the number 813142155 from the Numbermatics database.
Names of 813142155
- Cardinal: 813142155 can be written as Eight hundred thirteen million, one hundred forty-two thousand, one hundred fifty-five.
Scientific notation
- Scientific notation: 8.13142155 × 108
Factors of 813142155
Divisors of 813142155
- Number of divisors d(n): 64
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Complete list of divisors:
1 3 5 7 15 21 35 37 105 111 185 259 311 555 673 777 933 1295 1555 2019 2177 3365 3885 4665 4711 6531 10095 10885 11507 14133 23555 24901 32655 34521 57535 70665 74703 80549 124505 172605 174307 209303 241647 373515 402745 522921 627909 871535 1046515 1208235 1465121 2614605 3139545 4395363 7325605 7744211 21976815 23232633 38721055 54209477 116163165 162628431 271047385 813142155
- Sum of all divisors σ(n): 1534261248
- Sum of proper divisors (its aliquot sum) s(n): 721119093
- 813142155 is a deficient number, because the sum of its proper divisors (721119093) is less than itself. Its deficiency is 92023062
Bases of 813142155
- Binary: 1100000111011110010000100010112
- Hexadecimal: 0x3077908B
- Base-36: DG4GI3
Squares and roots of 813142155
- 813142155 squared (8131421552) is 661200164238044025
- 813142155 cubed (8131421553) is 537649726434877051473373875
-
The
square root of 813142155 is 28515.6475465665 -
The
cube root of 813142155 is 933.3735553101
Scales and comparisons
How big is 813142155?- 813,142,155 seconds is equal to 25 years, 44 weeks, 3 days, 8 hours, 49 minutes, 15 seconds.
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To count from 1 to 813,142,155 would take you about thirty-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 813142155 cubic inches would be around 77.8 feet tall.
Recreational maths with 813142155
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