Base | Representation |
---|---|
bin | 1000001110100… |
… | …11110100000111 |
3 | 11210212211112122 |
4 | 10013103310013 |
5 | 120132300111 |
6 | 10503240155 |
7 | 1465463105 |
oct | 407236407 |
9 | 153784478 |
10 | 69025031 |
11 | 35a65589 |
12 | 1b14905b |
13 | 113b9b1a |
14 | 924ac75 |
15 | 60d6cdb |
hex | 41d3d07 |
69025031 has 2 divisors, whose sum is σ = 69025032. Its totient is φ = 69025030.
The previous prime is 69025009. The next prime is 69025039. The reversal of 69025031 is 13052096.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-69025031 is a prime.
It is a super-2 number, since 2×690250312 = 9528909809101922, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (69025039) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34512515 + 34512516.
It is an arithmetic number, because the mean of its divisors is an integer number (34512516).
Almost surely, 269025031 is an apocalyptic number.
69025031 is a deficient number, since it is larger than the sum of its proper divisors (1).
69025031 is an equidigital number, since it uses as much as digits as its factorization.
69025031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1620, while the sum is 26.
The square root of 69025031 is about 8308.1304154425. The cubic root of 69025031 is about 410.2061842188.
The spelling of 69025031 in words is "sixty-nine million, twenty-five thousand, thirty-one".
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