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56634297458 = 21682772
BaseRepresentation
bin110100101111101010…
…101100110001110010
312102011221102101211112
4310233222230301302
51411441340004313
642003433313322
74043310404564
oct645752546162
9172157371745
1056634297458
1122022647a12
12ab86865842
13545738241b
142a53893334
1517170228a8
hexd2faacc72

56634297458 has 6 divisors (see below), whose sum is σ = 84951951021. Its totient is φ = 28316980452.

The previous prime is 56634297427. The next prime is 56634297463. The reversal of 56634297458 is 85479243665.

It can be written as a sum of positive squares in 2 ways, for example, as 42693064129 + 13941233329 = 206623^2 + 118073^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=168277.

It is a super-2 number, since 2×566342974582 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56634297397 and 56634297406.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 252416 + ... + 420692.

Almost surely, 256634297458 is an apocalyptic number.

56634297458 is a deficient number, since it is larger than the sum of its proper divisors (28317653563).

56634297458 is an frugal number, since it uses more digits than its factorization.

56634297458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336556 (or 168279 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 59.

The spelling of 56634297458 in words is "fifty-six billion, six hundred thirty-four million, two hundred ninety-seven thousand, four hundred fifty-eight".

Divisors: 1 2 168277 336554 28317148729 56634297458