Base | Representation |
---|---|
bin | 110101111001100100… |
… | …010010110110100111 |
3 | 12112101100101112121212 |
4 | 311321210102312213 |
5 | 1422011234214031 |
6 | 42330443302035 |
7 | 4116114002645 |
oct | 657144226647 |
9 | 175340345555 |
10 | 57874132391 |
11 | 225a9491289 |
12 | b271b1a91b |
13 | 55c41b326a |
14 | 2b303d2195 |
15 | 178accb12b |
hex | d79912da7 |
57874132391 has 2 divisors, whose sum is σ = 57874132392. Its totient is φ = 57874132390.
The previous prime is 57874132363. The next prime is 57874132423. The reversal of 57874132391 is 19323147875.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 57874132391 - 218 = 57873870247 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (57874132891) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28937066195 + 28937066196.
It is an arithmetic number, because the mean of its divisors is an integer number (28937066196).
Almost surely, 257874132391 is an apocalyptic number.
57874132391 is a deficient number, since it is larger than the sum of its proper divisors (1).
57874132391 is an equidigital number, since it uses as much as digits as its factorization.
57874132391 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1270080, while the sum is 50.
The spelling of 57874132391 in words is "fifty-seven billion, eight hundred seventy-four million, one hundred thirty-two thousand, three hundred ninety-one".
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