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56861425480 = 2351738216969
BaseRepresentation
bin110100111101001101…
…000111111101001000
312102202202210200220111
4310331031013331020
51412423011103410
642042145404104
74052036066446
oct647515077510
9172682720814
1056861425480
1122129879622
12b02a939634
1354924473c2
142a75ad7b96
15172be39b8a
hexd3d347f48

56861425480 has 32 divisors (see below), whose sum is σ = 128677750200. Its totient is φ = 22613095936.

The previous prime is 56861425451. The next prime is 56861425487. The reversal of 56861425480 is 8452416865.

It can be written as a sum of positive squares in 4 ways, for example, as 53417378884 + 3444046596 = 231122^2 + 58686^2 .

It is not an unprimeable number, because it can be changed into a prime (56861425487) 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, 4101565 + ... + 4115404.

Almost surely, 256861425480 is an apocalyptic number.

It is an amenable number.

56861425480 is an abundant number, since it is smaller than the sum of its proper divisors (71816324720).

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

56861425480 is a wasteful number, since it uses less digits than its factorization.

56861425480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8217153 (or 8217149 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 49.

The spelling of 56861425480 in words is "fifty-six billion, eight hundred sixty-one million, four hundred twenty-five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 173 346 692 865 1384 1730 3460 6920 8216969 16433938 32867876 41084845 65735752 82169690 164339380 328678760 1421535637 2843071274 5686142548 7107678185 11372285096 14215356370 28430712740 56861425480