Base | Representation |
---|---|
bin | 11100111100010010… |
… | …001000011010110011 |
3 | 2222012202021100101202 |
4 | 130330102020122303 |
5 | 1002120444011412 |
6 | 22135353521415 |
7 | 2150044656062 |
oct | 347422103263 |
9 | 88182240352 |
10 | 31076157107 |
11 | 121a7753876 |
12 | 603341326b |
13 | 2c13318458 |
14 | 170b33c1d9 |
15 | c1d3503c2 |
hex | 73c4886b3 |
31076157107 has 2 divisors, whose sum is σ = 31076157108. Its totient is φ = 31076157106.
The previous prime is 31076157071. The next prime is 31076157149. The reversal of 31076157107 is 70175167013.
Together with previous prime (31076157071) it forms an Ormiston pair, because they use the same digits, order apart.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 31076157107 - 212 = 31076153011 is a prime.
It is a super-3 number, since 3×310761571073 (a number of 32 digits) contains 333 as substring.
It is not a weakly prime, because it can be changed into another prime (31076157907) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15538078553 + 15538078554.
It is an arithmetic number, because the mean of its divisors is an integer number (15538078554).
Almost surely, 231076157107 is an apocalyptic number.
31076157107 is a deficient number, since it is larger than the sum of its proper divisors (1).
31076157107 is an equidigital number, since it uses as much as digits as its factorization.
31076157107 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 30870, while the sum is 38.
The spelling of 31076157107 in words is "thirty-one billion, seventy-six million, one hundred fifty-seven thousand, one hundred seven".
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