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57028201 = 232479487
BaseRepresentation
bin1101100110001…
…0111001101001
310222022022222121
43121202321221
5104044400301
65354151241
71261505656
oct331427151
9128268877
1057028201
112a21114a
1217122521
13ba793c9
147806c2d
1550173a1
hex3662e69

57028201 has 4 divisors (see below), whose sum is σ = 59507712. Its totient is φ = 54548692.

The previous prime is 57028199. The next prime is 57028241. The reversal of 57028201 is 10282075.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57028201 - 21 = 57028199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57028241) 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, 1239721 + ... + 1239766.

It is an arithmetic number, because the mean of its divisors is an integer number (14876928).

Almost surely, 257028201 is an apocalyptic number.

It is an amenable number.

57028201 is a deficient number, since it is larger than the sum of its proper divisors (2479511).

57028201 is a wasteful number, since it uses less digits than its factorization.

57028201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479510.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 57028201 is about 7551.7018611701. The cubic root of 57028201 is about 384.9135714239.

The spelling of 57028201 in words is "fifty-seven million, twenty-eight thousand, two hundred one".

Divisors: 1 23 2479487 57028201