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57295261 = 479911939
BaseRepresentation
bin1101101010010…
…0000110011101
310222210220022201
43122210012131
5104131422021
65404011501
71264000402
oct332440635
9128726281
1057295261
112a383861
1217230b91
13bb40b2a
1478762a9
15506b591
hex36a419d

57295261 has 4 divisors (see below), whose sum is σ = 57312000. Its totient is φ = 57278524.

The previous prime is 57295247. The next prime is 57295267. The reversal of 57295261 is 16259275.

57295261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57295261 - 221 = 55198109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57295261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57295267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1171 + ... + 10768.

It is an arithmetic number, because the mean of its divisors is an integer number (14328000).

Almost surely, 257295261 is an apocalyptic number.

It is an amenable number.

57295261 is a deficient number, since it is larger than the sum of its proper divisors (16739).

57295261 is a wasteful number, since it uses less digits than its factorization.

57295261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16738.

The product of its digits is 37800, while the sum is 37.

The square root of 57295261 is about 7569.3633153654. The cubic root of 57295261 is about 385.5134791395.

The spelling of 57295261 in words is "fifty-seven million, two hundred ninety-five thousand, two hundred sixty-one".

Divisors: 1 4799 11939 57295261