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57357133 = 177574457
BaseRepresentation
bin1101101011001…
…1001101001101
310222221001012021
43122303031031
5104140412013
65405210141
71264345651
oct332631515
9128831167
1057357133
112a416299
1217260951
13bb63042
147890a61
15507ea8d
hex36b334d

57357133 has 8 divisors (see below), whose sum is σ = 60824952. Its totient is φ = 53899776.

The previous prime is 57357127. The next prime is 57357151. The reversal of 57357133 is 33175375.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24029604 + 33327529 = 4902^2 + 5773^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57357133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57357163) 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, 10641 + ... + 15097.

It is an arithmetic number, because the mean of its divisors is an integer number (7603119).

Almost surely, 257357133 is an apocalyptic number.

It is an amenable number.

57357133 is a deficient number, since it is larger than the sum of its proper divisors (3467819).

57357133 is a wasteful number, since it uses less digits than its factorization.

57357133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5231.

The product of its digits is 33075, while the sum is 34.

The square root of 57357133 is about 7573.4492141956. The cubic root of 57357133 is about 385.6521986355.

The spelling of 57357133 in words is "fifty-seven million, three hundred fifty-seven thousand, one hundred thirty-three".

Divisors: 1 17 757 4457 12869 75769 3373949 57357133