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57202452061 = 231124752251
BaseRepresentation
bin110101010001100010…
…000010011001011101
312110122112111122102121
4311101202002121131
51414122311431221
642140051022541
74063346551156
oct652142023135
9173575448377
1057202452061
1122294324977
12b104b9aa51
135517cab091
142aa910a92d
15174bd4ea41
hexd5188265d

57202452061 has 4 divisors (see below), whose sum is σ = 57227206624. Its totient is φ = 57177697500.

The previous prime is 57202452053. The next prime is 57202452067. The reversal of 57202452061 is 16025420275.

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 57202452061 - 23 = 57202452053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57202452067) 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, 12373815 + ... + 12378436.

It is an arithmetic number, because the mean of its divisors is an integer number (14306801656).

Almost surely, 257202452061 is an apocalyptic number.

It is an amenable number.

57202452061 is a deficient number, since it is larger than the sum of its proper divisors (24754563).

57202452061 is a wasteful number, since it uses less digits than its factorization.

57202452061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24754562.

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 57202452061 in words is "fifty-seven billion, two hundred two million, four hundred fifty-two thousand, sixty-one".

Divisors: 1 2311 24752251 57202452061