Base | Representation |
---|---|
bin | 1101101101010… |
… | …0001000111111 |
3 | 11000011220020111 |
4 | 3123110020333 |
5 | 104204221111 |
6 | 5412130451 |
7 | 1265450152 |
oct | 333241077 |
9 | 130156214 |
10 | 57492031 |
11 | 2a4a8683 |
12 | 17306a27 |
13 | bbac56c |
14 | 78c7c99 |
15 | 50a9a21 |
hex | 36d423f |
57492031 has 2 divisors, whose sum is σ = 57492032. Its totient is φ = 57492030.
The previous prime is 57491999. The next prime is 57492041. The reversal of 57492031 is 13029475.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 57492031 - 25 = 57491999 is a prime.
It is a super-2 number, since 2×574920312 = 6610667257009922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 57491984 and 57492002.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (57492041) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28746015 + 28746016.
It is an arithmetic number, because the mean of its divisors is an integer number (28746016).
Almost surely, 257492031 is an apocalyptic number.
57492031 is a deficient number, since it is larger than the sum of its proper divisors (1).
57492031 is an equidigital number, since it uses as much as digits as its factorization.
57492031 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 7560, while the sum is 31.
The square root of 57492031 is about 7582.3499655450. The cubic root of 57492031 is about 385.9542998506.
The spelling of 57492031 in words is "fifty-seven million, four hundred ninety-two thousand, thirty-one".
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