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57089249 = 78155607
BaseRepresentation
bin1101100111000…
…1110011100001
310222102102201122
43121301303201
5104103323444
65355342025
71262151650
oct331616341
9128372648
1057089249
112a252aa8
1217151915
13ba9b129
147821197
15502a4ee
hex3671ce1

57089249 has 4 divisors (see below), whose sum is σ = 65244864. Its totient is φ = 48933636.

The previous prime is 57089231. The next prime is 57089267. The reversal of 57089249 is 94298075.

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 an interprime number because it is at equal distance from previous prime (57089231) and next prime (57089267).

It is a cyclic number.

It is not a de Polignac number, because 57089249 - 216 = 57023713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57089299) 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, 4077797 + ... + 4077810.

It is an arithmetic number, because the mean of its divisors is an integer number (16311216).

Almost surely, 257089249 is an apocalyptic number.

It is an amenable number.

57089249 is a deficient number, since it is larger than the sum of its proper divisors (8155615).

57089249 is an equidigital number, since it uses as much as digits as its factorization.

57089249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8155614.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 57089249 is about 7555.7427828110. The cubic root of 57089249 is about 385.0508708853.

The spelling of 57089249 in words is "fifty-seven million, eighty-nine thousand, two hundred forty-nine".

Divisors: 1 7 8155607 57089249