Base | Representation |
---|---|
bin | 1111000110001111… |
… | …00110000101110101 |
3 | 202220212201021210201 |
4 | 13203013212011311 |
5 | 113044434330412 |
6 | 3420142320501 |
7 | 404600435005 |
oct | 74307460565 |
9 | 22825637721 |
10 | 8105386357 |
11 | 348a308812 |
12 | 16a2589131 |
13 | 9c2321503 |
14 | 56c69c005 |
15 | 3268b5e57 |
hex | 1e31e6175 |
8105386357 has 2 divisors, whose sum is σ = 8105386358. Its totient is φ = 8105386356.
The previous prime is 8105386343. The next prime is 8105386381. The reversal of 8105386357 is 7536835018.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 7252395921 + 852990436 = 85161^2 + 29206^2 .
It is a cyclic number.
It is not a de Polignac number, because 8105386357 - 27 = 8105386229 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (8105386307) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4052693178 + 4052693179.
It is an arithmetic number, because the mean of its divisors is an integer number (4052693179).
Almost surely, 28105386357 is an apocalyptic number.
It is an amenable number.
8105386357 is a deficient number, since it is larger than the sum of its proper divisors (1).
8105386357 is an equidigital number, since it uses as much as digits as its factorization.
8105386357 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 604800, while the sum is 46.
The square root of 8105386357 is about 90029.9192324418. The cubic root of 8105386357 is about 2008.7439127016.
The spelling of 8105386357 in words is "eight billion, one hundred five million, three hundred eighty-six thousand, three hundred fifty-seven".
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