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28695168 = 273319223
BaseRepresentation
bin110110101110…
…1101010000000
31222222212101000
41231131222000
524321221133
62503012000
7465622245
oct155355200
958885330
1028695168
111521a117
12973a000
135c390b8
143b4d5cc
1527bc413
hex1b5da80

28695168 has 192 divisors, whose sum is σ = 93268800. Its totient is φ = 8667648.

The previous prime is 28695137. The next prime is 28695169. The reversal of 28695168 is 86159682.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28695169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1247605 + ... + 1247627.

It is an arithmetic number, because the mean of its divisors is an integer number (485775).

Almost surely, 228695168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28695168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46634400).

28695168 is an abundant number, since it is smaller than the sum of its proper divisors (64573632).

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

28695168 is a wasteful number, since it uses less digits than its factorization.

28695168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 47 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 28695168 is about 5356.7870967587. The cubic root of 28695168 is about 306.1514052740.

The spelling of 28695168 in words is "twenty-eight million, six hundred ninety-five thousand, one hundred sixty-eight".