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57930842 = 236138017
BaseRepresentation
bin1101110011111…
…1010001011010
311001000012011202
43130333101122
5104312241332
65425354202
71302255404
oct334772132
9131005152
1057930842
112a778332
1217498962
13c004208
14799db74
155144a62
hex373f45a

57930842 has 8 divisors (see below), whose sum is σ = 86931156. Its totient is φ = 28953792.

The previous prime is 57930839. The next prime is 57930853. The reversal of 57930842 is 24803975.

It can be written as a sum of positive squares in 2 ways, for example, as 51423241 + 6507601 = 7171^2 + 2551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 57930796 and 57930805.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3218 + ... + 11234.

Almost surely, 257930842 is an apocalyptic number.

57930842 is a deficient number, since it is larger than the sum of its proper divisors (29000314).

57930842 is a wasteful number, since it uses less digits than its factorization.

57930842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11632.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 57930842 is about 7611.2313064313. The cubic root of 57930842 is about 386.9337510984.

The spelling of 57930842 in words is "fifty-seven million, nine hundred thirty thousand, eight hundred forty-two".

Divisors: 1 2 3613 7226 8017 16034 28965421 57930842