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557897874 = 231719287873
BaseRepresentation
bin100001010000001…
…101100010010010
31102212210011000020
4201100031202102
52120310212444
6131205404310
716553024262
oct4120154222
91385704006
10557897874
11266a11a26
12136a09696
138b7772b1
14541477a2
1533ea3119
hex2140d892

557897874 has 32 divisors (see below), whose sum is σ = 1243615680. Its totient is φ = 165814272.

The previous prime is 557897843. The next prime is 557897897. The reversal of 557897874 is 478798755.

It is a super-2 number, since 2×5578978742 = 622500075627439752, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141999 + ... + 145874.

It is an arithmetic number, because the mean of its divisors is an integer number (38862990).

Almost surely, 2557897874 is an apocalyptic number.

557897874 is an abundant number, since it is smaller than the sum of its proper divisors (685717806).

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

557897874 is a wasteful number, since it uses less digits than its factorization.

557897874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287914.

The product of its digits is 19756800, while the sum is 60.

The square root of 557897874 is about 23619.8618539567. The cubic root of 557897874 is about 823.2244023504.

The spelling of 557897874 in words is "five hundred fifty-seven million, eight hundred ninety-seven thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 17 19 34 38 51 57 102 114 323 646 969 1938 287873 575746 863619 1727238 4893841 5469587 9787682 10939174 14681523 16408761 29363046 32817522 92982979 185965958 278948937 557897874