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28252196 = 2271009007
BaseRepresentation
bin110101111000…
…1100000100100
31222011100201122
41223301200210
524213032241
62445313112
7462065630
oct153614044
958140648
1028252196
1114a47325
129565798
135b1259b
143a75dc0
15273104b
hex1af1824

28252196 has 12 divisors (see below), whose sum is σ = 56504448. Its totient is φ = 12108072.

The previous prime is 28252187. The next prime is 28252199. The reversal of 28252196 is 69125282.

It is a happy number.

28252196 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (28252199) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 504476 + ... + 504531.

It is an arithmetic number, because the mean of its divisors is an integer number (4708704).

Almost surely, 228252196 is an apocalyptic number.

It is an amenable number.

28252196 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28252196 is a wasteful number, since it uses less digits than its factorization.

28252196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009018 (or 1009016 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 28252196 is about 5315.2794846555. The cubic root of 28252196 is about 304.5678588485.

The spelling of 28252196 in words is "twenty-eight million, two hundred fifty-two thousand, one hundred ninety-six".

Divisors: 1 2 4 7 14 28 1009007 2018014 4036028 7063049 14126098 28252196