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557384680 = 23513934617
BaseRepresentation
bin100001001110010…
…000001111101000
31102211211002001001
4201032100033220
52120142302210
6131150404344
716545456136
oct4116201750
91384732031
10557384680
112666a13a6
121368006b4
138b627828
1454052756
1533e0103a
hex213903e8

557384680 has 16 divisors (see below), whose sum is σ = 1254115620. Its totient is φ = 222953856.

The previous prime is 557384671. The next prime is 557384693. The reversal of 557384680 is 86483755.

It can be written as a sum of positive squares in 2 ways, for example, as 546717924 + 10666756 = 23382^2 + 3266^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 557384680.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6967269 + ... + 6967348.

Almost surely, 2557384680 is an apocalyptic number.

It is an amenable number.

557384680 is an abundant number, since it is smaller than the sum of its proper divisors (696730940).

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

557384680 is a wasteful number, since it uses less digits than its factorization.

557384680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13934628 (or 13934624 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The square root of 557384680 is about 23608.9957431484. The cubic root of 557384680 is about 822.9719048651.

The spelling of 557384680 in words is "five hundred fifty-seven million, three hundred eighty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 13934617 27869234 55738468 69673085 111476936 139346170 278692340 557384680