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57331442 = 274095103
BaseRepresentation
bin1101101010110…
…0111011110010
310222212201221202
43122230323302
5104134101232
65404451202
71264211030
oct332547362
9128781852
1057331442
112a3a8a63
1217249b02
13bb5443c
147885550
155077162
hex36acef2

57331442 has 8 divisors (see below), whose sum is σ = 98282496. Its totient is φ = 24570612.

The previous prime is 57331423. The next prime is 57331447. The reversal of 57331442 is 24413375.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (57331447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2047538 + ... + 2047565.

It is an arithmetic number, because the mean of its divisors is an integer number (12285312).

Almost surely, 257331442 is an apocalyptic number.

57331442 is a deficient number, since it is larger than the sum of its proper divisors (40951054).

57331442 is a wasteful number, since it uses less digits than its factorization.

57331442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095112.

The product of its digits is 10080, while the sum is 29.

The square root of 57331442 is about 7571.7529014093. The cubic root of 57331442 is about 385.5946105044.

The spelling of 57331442 in words is "fifty-seven million, three hundred thirty-one thousand, four hundred forty-two".

Divisors: 1 2 7 14 4095103 8190206 28665721 57331442