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12877586055 = 325364378553
BaseRepresentation
bin10111111111001000…
…00101111010000111
31020020110110011002200
423333210011322013
5202333130223210
65525455205543
7634055450445
oct137744057207
936213404080
1012877586055
115509075004
1225b48168b3
1312a2c11109
148a23c1b95
155058210c0
hex2ff905e87

12877586055 has 24 divisors (see below), whose sum is σ = 22327560528. Its totient is φ = 6866073216.

The previous prime is 12877586011. The next prime is 12877586149. The reversal of 12877586055 is 55068577821.

12877586055 is a `hidden beast` number, since 1 + 2 + 8 + 7 + 7 + 586 + 0 + 55 = 666.

It is not a de Polignac number, because 12877586055 - 26 = 12877585991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12877585992 and 12877586010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124659 + ... + 203211.

It is an arithmetic number, because the mean of its divisors is an integer number (930315022).

Almost surely, 212877586055 is an apocalyptic number.

12877586055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12877586055 is a deficient number, since it is larger than the sum of its proper divisors (9449974473).

12877586055 is a wasteful number, since it uses less digits than its factorization.

12877586055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82207 (or 82204 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 54.

The spelling of 12877586055 in words is "twelve billion, eight hundred seventy-seven million, five hundred eighty-six thousand, fifty-five".

Divisors: 1 3 5 9 15 45 3643 10929 18215 32787 54645 78553 163935 235659 392765 706977 1178295 3534885 286168579 858505737 1430842895 2575517211 4292528685 12877586055