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28926276 = 2232410523
BaseRepresentation
bin110111001011…
…0000101000100
32000102121101120
41232112011010
524401120101
62511553540
7500604111
oct156260504
960377346
1028926276
1115367815
12982b8b0
135cba352
143bad908
152815b36
hex1b96144

28926276 has 12 divisors (see below), whose sum is σ = 67494672. Its totient is φ = 9642088.

The previous prime is 28926263. The next prime is 28926281. The reversal of 28926276 is 67262982.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205250 + ... + 1205273.

It is an arithmetic number, because the mean of its divisors is an integer number (5624556).

Almost surely, 228926276 is an apocalyptic number.

It is an amenable number.

28926276 is an abundant number, since it is smaller than the sum of its proper divisors (38568396).

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

28926276 is a wasteful number, since it uses less digits than its factorization.

28926276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410530 (or 2410528 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 28926276 is about 5378.3153496239. The cubic root of 28926276 is about 306.9711128022.

It can be divided in two parts, 289 and 26276, that added together give a triangular number (26565 = T230).

The spelling of 28926276 in words is "twenty-eight million, nine hundred twenty-six thousand, two hundred seventy-six".

Divisors: 1 2 3 4 6 12 2410523 4821046 7231569 9642092 14463138 28926276