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57214572 = 22345710433
BaseRepresentation
bin1101101001000…
…0011001101100
310222122210122020
43122100121230
5104121331242
65402150140
71263213222
oct332203154
9128583566
1057214572
112a329178
12171b2350
13bb1319c
147854b12
1550526ec
hex369066c

57214572 has 24 divisors (see below), whose sum is σ = 133805616. Its totient is φ = 19027968.

The previous prime is 57214517. The next prime is 57214579. The reversal of 57214572 is 27541275.

It is not an unprimeable number, because it can be changed into a prime (57214579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268 + ... + 10700.

It is an arithmetic number, because the mean of its divisors is an integer number (5575234).

Almost surely, 257214572 is an apocalyptic number.

It is an amenable number.

57214572 is an abundant number, since it is smaller than the sum of its proper divisors (76591044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57214572 is a wasteful number, since it uses less digits than its factorization.

57214572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10897 (or 10895 counting only the distinct ones).

The product of its digits is 19600, while the sum is 33.

The square root of 57214572 is about 7564.0314647680. The cubic root of 57214572 is about 385.3324210523.

The spelling of 57214572 in words is "fifty-seven million, two hundred fourteen thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 12 457 914 1371 1828 2742 5484 10433 20866 31299 41732 62598 125196 4767881 9535762 14303643 19071524 28607286 57214572