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28348160 = 28522147
BaseRepresentation
bin110110000100…
…0111100000000
31222100020100212
41230020330000
524224120120
62451333252
7462645461
oct154107400
958306325
1028348160
1115002435
1295b1228
135b47179
143a9cd68
15274e6c5
hex1b08f00

28348160 has 36 divisors (see below), whose sum is σ = 67905768. Its totient is φ = 11338752.

The previous prime is 28348157. The next prime is 28348183. The reversal of 28348160 is 6184382.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9794 + ... + 12353.

Almost surely, 228348160 is an apocalyptic number.

28348160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28348160 is an abundant number, since it is smaller than the sum of its proper divisors (39557608).

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

28348160 is an equidigital number, since it uses as much as digits as its factorization.

28348160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22168 (or 22154 counting only the distinct ones).

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

The square root of 28348160 is about 5324.2990148939. The cubic root of 28348160 is about 304.9123101846.

The spelling of 28348160 in words is "twenty-eight million, three hundred forty-eight thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 22147 44294 88588 110735 177176 221470 354352 442940 708704 885880 1417408 1771760 2834816 3543520 5669632 7087040 14174080 28348160