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28332927 = 3272411567
BaseRepresentation
bin110110000010…
…1001101111111
31222022110110200
41230011031333
524223123202
62451134543
7462553200
oct154051577
958273420
1028332927
1114aa1a47
1295a4453
135b4025c
143a975a7
152749e1c
hex1b0537f

28332927 has 36 divisors (see below), whose sum is σ = 48799296. Its totient is φ = 15785280.

The previous prime is 28332923. The next prime is 28332929. The reversal of 28332927 is 72923382.

It is not a de Polignac number, because 28332927 - 22 = 28332923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28332891 and 28332900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28332923) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17298 + ... + 18864.

It is an arithmetic number, because the mean of its divisors is an integer number (1355536).

Almost surely, 228332927 is an apocalyptic number.

28332927 is a deficient number, since it is larger than the sum of its proper divisors (20466369).

28332927 is a wasteful number, since it uses less digits than its factorization.

28332927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628 (or 1618 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 28332927 is about 5322.8683057164. The cubic root of 28332927 is about 304.8576851058.

The spelling of 28332927 in words is "twenty-eight million, three hundred thirty-two thousand, nine hundred twenty-seven".

Divisors: 1 3 7 9 21 41 49 63 123 147 287 369 441 861 1567 2009 2583 4701 6027 10969 14103 18081 32907 64247 76783 98721 192741 230349 449729 578223 691047 1349187 3148103 4047561 9444309 28332927