Base | Representation |
---|---|
bin | 11100111000010101… |
… | …111000101000011111 |
3 | 2222001010211212000121 |
4 | 130320111320220133 |
5 | 1002002032012114 |
6 | 22125032335411 |
7 | 2145312632011 |
oct | 347025705037 |
9 | 88033755017 |
10 | 31010032159 |
11 | 1217339a157 |
12 | 6015244567 |
13 | 2c02705672 |
14 | 17026481b1 |
15 | c1763ca24 |
hex | 738578a1f |
31010032159 has 2 divisors, whose sum is σ = 31010032160. Its totient is φ = 31010032158.
The previous prime is 31010032139. The next prime is 31010032171. The reversal of 31010032159 is 95123001013.
It is a strong prime.
It is an emirp because it is prime and its reverse (95123001013) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 31010032159 - 229 = 30473161247 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (31010032139) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15505016079 + 15505016080.
It is an arithmetic number, because the mean of its divisors is an integer number (15505016080).
Almost surely, 231010032159 is an apocalyptic number.
31010032159 is a deficient number, since it is larger than the sum of its proper divisors (1).
31010032159 is an equidigital number, since it uses as much as digits as its factorization.
31010032159 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 810, while the sum is 25.
The spelling of 31010032159 in words is "thirty-one billion, ten million, thirty-two thousand, one hundred fifty-nine".
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