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56912725480 = 23513109447549
BaseRepresentation
bin110101000000010000…
…110100010111101000
312102220100100000021111
4311000100310113220
51413024124203410
642051221120104
74053231120232
oct650020642750
9172810300244
1056912725480
1122155828016
12b043b59034
13549cc69430
142a7c84d252
1517316beb8a
hexd404345e8

56912725480 has 32 divisors (see below), whose sum is σ = 137903913000. Its totient is φ = 21013929216.

The previous prime is 56912725459. The next prime is 56912725481. The reversal of 56912725480 is 8452721965.

It can be written as a sum of positive squares in 4 ways, for example, as 44658678276 + 12254047204 = 211326^2 + 110698^2 .

It is not an unprimeable number, because it can be changed into a prime (56912725481) 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, 54723255 + ... + 54724294.

Almost surely, 256912725480 is an apocalyptic number.

It is an amenable number.

56912725480 is an abundant number, since it is smaller than the sum of its proper divisors (80991187520).

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

56912725480 is a wasteful number, since it uses less digits than its factorization.

56912725480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109447573 (or 109447569 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 56912725480 in words is "fifty-six billion, nine hundred twelve million, seven hundred twenty-five thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 109447549 218895098 437790196 547237745 875580392 1094475490 1422818137 2188950980 2845636274 4377901960 5691272548 7114090685 11382545096 14228181370 28456362740 56912725480