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27480980692 = 22111736739279
BaseRepresentation
bin11001100101111111…
…100111110011010100
32121221012022110111201
4121211333213303110
5422240112340232
620342524442244
71662001324144
oct314577476324
977835273451
1027480980692
111072232a5a0
1253ab3a9384
13278c536a29
141489a86924
15aac8e2be7
hex665fe7cd4

27480980692 has 24 divisors (see below), whose sum is σ = 55549791360. Its totient is φ = 11756568960.

The previous prime is 27480980669. The next prime is 27480980711. The reversal of 27480980692 is 29608908472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18368892 + ... + 18370387.

It is an arithmetic number, because the mean of its divisors is an integer number (2314574640).

Almost surely, 227480980692 is an apocalyptic number.

27480980692 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

27480980692 is an abundant number, since it is smaller than the sum of its proper divisors (28068810668).

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

27480980692 is a wasteful number, since it uses less digits than its factorization.

27480980692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36739311 (or 36739309 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 27480980692 in words is "twenty-seven billion, four hundred eighty million, nine hundred eighty thousand, six hundred ninety-two".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 36739279 73478558 146957116 404132069 624567743 808264138 1249135486 1616528276 2498270972 6870245173 13740490346 27480980692