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28838300 = 2252288383
BaseRepresentation
bin110111000000…
…0100110011100
32000021010201012
41232000212130
524340311200
62510034352
7500056451
oct156004634
960233635
1028838300
1115307707
1297a89b8
135c892aa
143b89828
1527e9a35
hex1b8099c

28838300 has 18 divisors (see below), whose sum is σ = 62579328. Its totient is φ = 11535280.

The previous prime is 28838291. The next prime is 28838321. The reversal of 28838300 is 383882.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 144092 + ... + 144291.

Almost surely, 228838300 is an apocalyptic number.

28838300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28838300 is an abundant number, since it is smaller than the sum of its proper divisors (33741028).

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

28838300 is a wasteful number, since it uses less digits than its factorization.

28838300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288397 (or 288390 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 28838300 is about 5370.1303522354. The cubic root of 28838300 is about 306.6595907840.

The spelling of 28838300 in words is "twenty-eight million, eight hundred thirty-eight thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 288383 576766 1153532 1441915 2883830 5767660 7209575 14419150 28838300