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28108196 = 2231419541
BaseRepresentation
bin110101100111…
…0010110100100
31221220001012022
41223032112210
524143430241
62442242312
7460626044
oct153162644
957801168
1028108196
1114959116
1294b6398
135a91b8c
143a39724
15270354b
hex1ace5a4

28108196 has 24 divisors (see below), whose sum is σ = 50991360. Its totient is φ = 13543200.

The previous prime is 28108193. The next prime is 28108211. The reversal of 28108196 is 69180182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28108193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51686 + ... + 52226.

It is an arithmetic number, because the mean of its divisors is an integer number (2124640).

Almost surely, 228108196 is an apocalyptic number.

It is an amenable number.

28108196 is a deficient number, since it is larger than the sum of its proper divisors (22883164).

28108196 is a wasteful number, since it uses less digits than its factorization.

28108196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 28108196 is about 5301.7163258703. The cubic root of 28108196 is about 304.0495215955.

The spelling of 28108196 in words is "twenty-eight million, one hundred eight thousand, one hundred ninety-six".

Divisors: 1 2 4 31 62 124 419 541 838 1082 1676 2164 12989 16771 25978 33542 51956 67084 226679 453358 906716 7027049 14054098 28108196