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28118752 = 251794909
BaseRepresentation
bin110101101000…
…0111011100000
31221220120200021
41223100323200
524144300002
62442403224
7461001604
oct153207340
957816607
1028118752
1114966042
129500514
135a9691c
143a3d504
152706737
hex1ad0ee0

28118752 has 24 divisors (see below), whose sum is σ = 55679400. Its totient is φ = 13977984.

The previous prime is 28118729. The next prime is 28118759. The reversal of 28118752 is 25781182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28118759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3274 + ... + 8182.

It is an arithmetic number, because the mean of its divisors is an integer number (2319975).

Almost surely, 228118752 is an apocalyptic number.

It is an amenable number.

28118752 is a deficient number, since it is larger than the sum of its proper divisors (27560648).

28118752 is a wasteful number, since it uses less digits than its factorization.

28118752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5098 (or 5090 counting only the distinct ones).

The product of its digits is 8960, while the sum is 34.

The square root of 28118752 is about 5302.7117590908. The cubic root of 28118752 is about 304.0875786454.

The spelling of 28118752 in words is "twenty-eight million, one hundred eighteen thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 16 32 179 358 716 1432 2864 4909 5728 9818 19636 39272 78544 157088 878711 1757422 3514844 7029688 14059376 28118752