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57378746 = 2191509967
BaseRepresentation
bin1101101011100…
…0011110111010
310222222010211202
43122320132322
5104142104441
65405454202
71264465655
oct332703672
9128863752
1057378746
112a430557
1217271362
13bb6cb29
14789889c
15508619b
hex36b87ba

57378746 has 8 divisors (see below), whose sum is σ = 90598080. Its totient is φ = 27179388.

The previous prime is 57378743. The next prime is 57378779. The reversal of 57378746 is 64787375.

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

It is a self number, because there is not a number n which added to its sum of digits gives 57378746.

It is not an unprimeable number, because it can be changed into a prime (57378743) 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, 754946 + ... + 755021.

It is an arithmetic number, because the mean of its divisors is an integer number (11324760).

Almost surely, 257378746 is an apocalyptic number.

57378746 is a deficient number, since it is larger than the sum of its proper divisors (33219334).

57378746 is a wasteful number, since it uses less digits than its factorization.

57378746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509988.

The product of its digits is 987840, while the sum is 47.

The square root of 57378746 is about 7574.8759725820. The cubic root of 57378746 is about 385.7006323340.

The spelling of 57378746 in words is "fifty-seven million, three hundred seventy-eight thousand, seven hundred forty-six".

Divisors: 1 2 19 38 1509967 3019934 28689373 57378746