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28676545 = 57180779
BaseRepresentation
bin110110101100…
…1000111000001
31222221220211021
41231121013001
524320122140
62502345441
7465514042
oct155310701
958856737
1028676545
1115207127
12972b281
135c30791
143b468c9
1527b6b4a
hex1b591c1

28676545 has 8 divisors (see below), whose sum is σ = 34896960. Its totient is φ = 22617840.

The previous prime is 28676509. The next prime is 28676573. The reversal of 28676545 is 54567682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28676545 - 211 = 28674497 is a prime.

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, 40035 + ... + 40744.

It is an arithmetic number, because the mean of its divisors is an integer number (4362120).

Almost surely, 228676545 is an apocalyptic number.

It is an amenable number.

28676545 is a deficient number, since it is larger than the sum of its proper divisors (6220415).

28676545 is an equidigital number, since it uses as much as digits as its factorization.

28676545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80855.

The product of its digits is 403200, while the sum is 43.

The square root of 28676545 is about 5355.0485525343. The cubic root of 28676545 is about 306.0851607705.

The spelling of 28676545 in words is "twenty-eight million, six hundred seventy-six thousand, five hundred forty-five".

Divisors: 1 5 71 355 80779 403895 5735309 28676545