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28926927 = 323214103
BaseRepresentation
bin110111001011…
…0001111001111
32000102122021200
41232112033033
524401130202
62512000543
7500606031
oct156261717
960378250
1028926927
1115368257
129830153
135cba733
143badc51
152815e1c
hex1b963cf

28926927 has 6 divisors (see below), whose sum is σ = 41783352. Its totient is φ = 19284612.

The previous prime is 28926913. The next prime is 28926929. The reversal of 28926927 is 72962982.

It is not a de Polignac number, because 28926927 - 223 = 20538319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28926929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1607043 + ... + 1607060.

It is an arithmetic number, because the mean of its divisors is an integer number (6963892).

Almost surely, 228926927 is an apocalyptic number.

28926927 is a deficient number, since it is larger than the sum of its proper divisors (12856425).

28926927 is a wasteful number, since it uses less digits than its factorization.

28926927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214109 (or 3214106 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 28926927 is about 5378.3758700931. The cubic root of 28926927 is about 306.9734156300.

The spelling of 28926927 in words is "twenty-eight million, nine hundred twenty-six thousand, nine hundred twenty-seven".

Divisors: 1 3 9 3214103 9642309 28926927