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57429942 = 2323416159
BaseRepresentation
bin1101101100010…
…0111110110110
311000001202001220
43123010332312
5104200224232
65410531210
71265101143
oct333047666
9130052056
1057429942
112a465a69
1217296b06
13bb8a21b
1478ad3ca
15509642c
hex36c4fb6

57429942 has 16 divisors (see below), whose sum is σ = 119854080. Its totient is φ = 18310952.

The previous prime is 57429929. The next prime is 57429943. The reversal of 57429942 is 24992475.

It is a junction number, because it is equal to n+sod(n) for n = 57429894 and 57429903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57429943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207942 + ... + 208217.

It is an arithmetic number, because the mean of its divisors is an integer number (7490880).

Almost surely, 257429942 is an apocalyptic number.

57429942 is an abundant number, since it is smaller than the sum of its proper divisors (62424138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57429942 is a wasteful number, since it uses less digits than its factorization.

57429942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416187.

The product of its digits is 181440, while the sum is 42.

The square root of 57429942 is about 7578.2545483772. The cubic root of 57429942 is about 385.8153116127.

The spelling of 57429942 in words is "fifty-seven million, four hundred twenty-nine thousand, nine hundred forty-two".

Divisors: 1 2 3 6 23 46 69 138 416159 832318 1248477 2496954 9571657 19143314 28714971 57429942