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57030113 = 78147159
BaseRepresentation
bin1101100110001…
…1010111100001
310222022102121102
43121203113201
5104044430423
65354204145
71261514360
oct331432741
9128272542
1057030113
112a212628
1217123655
13ba7a23a
1478077d7
155017c28
hex36635e1

57030113 has 4 divisors (see below), whose sum is σ = 65177280. Its totient is φ = 48882948.

The previous prime is 57030097. The next prime is 57030137. The reversal of 57030113 is 31103075.

It is a happy number.

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 57030113 - 24 = 57030097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57030143) 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, 4073573 + ... + 4073586.

It is an arithmetic number, because the mean of its divisors is an integer number (16294320).

Almost surely, 257030113 is an apocalyptic number.

It is an amenable number.

57030113 is a deficient number, since it is larger than the sum of its proper divisors (8147167).

57030113 is an equidigital number, since it uses as much as digits as its factorization.

57030113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8147166.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 57030113 is about 7551.8284540898. The cubic root of 57030113 is about 384.9178730765.

Adding to 57030113 its reverse (31103075), we get a palindrome (88133188).

The spelling of 57030113 in words is "fifty-seven million, thirty thousand, one hundred thirteen".

Divisors: 1 7 8147159 57030113