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28337008 = 2475032
BaseRepresentation
bin110110000011…
…0001101110000
31222022200001211
41230012031300
524223241013
62451205504
7462601120
oct154061560
958280054
1028337008
1114aa5017
1295a6894
135b4207b
143a98c80
15274b23d
hex1b06370

28337008 has 30 divisors (see below), whose sum is σ = 62871224. Its totient is φ = 12120288.

The previous prime is 28336991. The next prime is 28337009. The reversal of 28337008 is 80073382.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28337009) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 56085 + ... + 56587.

Almost surely, 228337008 is an apocalyptic number.

28337008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28337008 is an abundant number, since it is smaller than the sum of its proper divisors (34534216).

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

28337008 is an frugal number, since it uses more digits than its factorization.

28337008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 28337008 is about 5323.2516378620. The cubic root of 28337008 is about 304.8723213685.

The spelling of 28337008 in words is "twenty-eight million, three hundred thirty-seven thousand, eight".

Divisors: 1 2 4 7 8 14 16 28 56 112 503 1006 2012 3521 4024 7042 8048 14084 28168 56336 253009 506018 1012036 1771063 2024072 3542126 4048144 7084252 14168504 28337008