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28867168 = 251182009
BaseRepresentation
bin110111000011…
…1101001100000
32000022121022101
41232013221200
524342222133
62510420144
7500236561
oct156075140
960277271
1028867168
1115327370
129801654
135c99485
143b96168
15280337d
hex1b87a60

28867168 has 24 divisors (see below), whose sum is σ = 61999560. Its totient is φ = 13121280.

The previous prime is 28867159. The next prime is 28867177. The reversal of 28867168 is 86176882.

It is an interprime number because it is at equal distance from previous prime (28867159) and next prime (28867177).

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, 40653 + ... + 41356.

It is an arithmetic number, because the mean of its divisors is an integer number (2583315).

Almost surely, 228867168 is an apocalyptic number.

It is an amenable number.

28867168 is an abundant number, since it is smaller than the sum of its proper divisors (33132392).

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

28867168 is a wasteful number, since it uses less digits than its factorization.

28867168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82030 (or 82022 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The square root of 28867168 is about 5372.8175103943. The cubic root of 28867168 is about 306.7618817973.

The spelling of 28867168 in words is "twenty-eight million, eight hundred sixty-seven thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 176 352 82009 164018 328036 656072 902099 1312144 1804198 2624288 3608396 7216792 14433584 28867168