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57354661 = 7133072053
BaseRepresentation
bin1101101011001…
…0100110100101
310222220220210201
43122302212211
5104140322121
65405150501
71264335520
oct332624645
9128826721
1057354661
112a414451
121725b431
13bb61b90
14788dbb7
15507de91
hex36b29a5

57354661 has 16 divisors (see below), whose sum is σ = 70854784. Its totient is φ = 45209664.

The previous prime is 57354659. The next prime is 57354677. The reversal of 57354661 is 16645375.

It is a cyclic number.

It is not a de Polignac number, because 57354661 - 21 = 57354659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57354661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57354611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26911 + ... + 28963.

It is an arithmetic number, because the mean of its divisors is an integer number (4428424).

Almost surely, 257354661 is an apocalyptic number.

It is an amenable number.

57354661 is a deficient number, since it is larger than the sum of its proper divisors (13500123).

57354661 is a wasteful number, since it uses less digits than its factorization.

57354661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380.

The product of its digits is 75600, while the sum is 37.

The square root of 57354661 is about 7573.2860107090. The cubic root of 57354661 is about 385.6466582265.

The spelling of 57354661 in words is "fifty-seven million, three hundred fifty-four thousand, six hundred sixty-one".

Divisors: 1 7 13 91 307 2053 2149 3991 14371 26689 27937 186823 630271 4411897 8193523 57354661