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56761868884 = 2272027209603
BaseRepresentation
bin110100110111010001…
…010110001001010100
312102111211110200221011
4310313101112021110
51412222014301014
642024231502004
74046416632130
oct646721261124
9172454420834
1056761868884
1122088660246
12b001527904
13547792a686
142a667c03c0
1517233217c4
hexd37456254

56761868884 has 12 divisors (see below), whose sum is σ = 113523737824. Its totient is φ = 24326515224.

The previous prime is 56761868881. The next prime is 56761868893. The reversal of 56761868884 is 48886816765.

56761868884 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56761868881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1013604774 + ... + 1013604829.

Almost surely, 256761868884 is an apocalyptic number.

It is an amenable number.

56761868884 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56761868884 is a wasteful number, since it uses less digits than its factorization.

56761868884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027209614 (or 2027209612 counting only the distinct ones).

The product of its digits is 123863040, while the sum is 67.

The spelling of 56761868884 in words is "fifty-six billion, seven hundred sixty-one million, eight hundred sixty-eight thousand, eight hundred eighty-four".

Divisors: 1 2 4 7 14 28 2027209603 4054419206 8108838412 14190467221 28380934442 56761868884