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57353137 = 417091973
BaseRepresentation
bin1101101011001…
…0001110110001
310222220211201021
43122302032301
5104140300022
65405135441
71264331212
oct332621661
9128824637
1057353137
112a413296
121725a581
13bb6128a
14788d409
15507d7c7
hex36b23b1

57353137 has 8 divisors (see below), whose sum is σ = 58864680. Its totient is φ = 55847040.

The previous prime is 57353123. The next prime is 57353141. The reversal of 57353137 is 73135375.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3418801 + 53934336 = 1849^2 + 7344^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 57353137 - 215 = 57320369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57353117) 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, 28083 + ... + 30055.

It is an arithmetic number, because the mean of its divisors is an integer number (7358085).

Almost surely, 257353137 is an apocalyptic number.

It is an amenable number.

57353137 is a deficient number, since it is larger than the sum of its proper divisors (1511543).

57353137 is a wasteful number, since it uses less digits than its factorization.

57353137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723.

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

The square root of 57353137 is about 7573.1853932147. The cubic root of 57353137 is about 385.6432424581.

The spelling of 57353137 in words is "fifty-seven million, three hundred fifty-three thousand, one hundred thirty-seven".

Divisors: 1 41 709 1973 29069 80893 1398857 57353137