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57372201 = 326374689
BaseRepresentation
bin1101101011011…
…0111000101001
310222221210212100
43122312320221
5104141402301
65405404013
71264440615
oct332667051
9128853770
1057372201
112a426647
1217269609
13bb69b63
147896345
155084286
hex36b6e29

57372201 has 6 divisors (see below), whose sum is σ = 82870970. Its totient is φ = 38248128.

The previous prime is 57372199. The next prime is 57372209. The reversal of 57372201 is 10227375.

57372201 is a `hidden beast` number, since 573 + 72 + 20 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 36905625 + 20466576 = 6075^2 + 4524^2 .

It is not a de Polignac number, because 57372201 - 21 = 57372199 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57372209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3187336 + ... + 3187353.

Almost surely, 257372201 is an apocalyptic number.

It is an amenable number.

57372201 is a deficient number, since it is larger than the sum of its proper divisors (25498769).

57372201 is a wasteful number, since it uses less digits than its factorization.

57372201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374695 (or 6374692 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 57372201 is about 7574.4439399866. The cubic root of 57372201 is about 385.6859665864.

Adding to 57372201 its reverse (10227375), we get a palindrome (67599576).

The spelling of 57372201 in words is "fifty-seven million, three hundred seventy-two thousand, two hundred one".

Divisors: 1 3 9 6374689 19124067 57372201