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57052306 = 2171678009
BaseRepresentation
bin1101100110100…
…0110010010010
310222100120001101
43121220302102
5104101133211
65354455014
71261636153
oct331506222
9128316041
1057052306
112a228273
121713446a
13ba8737c
14781192a
15501e5c1
hex3668c92

57052306 has 8 divisors (see below), whose sum is σ = 90612540. Its totient is φ = 26848128.

The previous prime is 57052301. The next prime is 57052321. The reversal of 57052306 is 60325075.

It can be written as a sum of positive squares in 2 ways, for example, as 50339025 + 6713281 = 7095^2 + 2591^2 .

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

It is not an unprimeable number, because it can be changed into a prime (57052301) 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, 838971 + ... + 839038.

Almost surely, 257052306 is an apocalyptic number.

57052306 is a deficient number, since it is larger than the sum of its proper divisors (33560234).

57052306 is a wasteful number, since it uses less digits than its factorization.

57052306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678028.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 57052306 is about 7553.2976904131. The cubic root of 57052306 is about 384.9677962607.

The spelling of 57052306 in words is "fifty-seven million, fifty-two thousand, three hundred six".

Divisors: 1 2 17 34 1678009 3356018 28526153 57052306