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28096325 = 521766109
BaseRepresentation
bin110101100101…
…1011101000101
31221212102220122
41223023131011
524143040300
62442111325
7460546325
oct153133505
957772818
1028096325
1114950204
1294ab545
135a8965a
143a35285
1526eec85
hex1acb745

28096325 has 12 divisors (see below), whose sum is σ = 36889380. Its totient is φ = 21154560.

The previous prime is 28096309. The next prime is 28096339. The reversal of 28096325 is 52369082.

It can be written as a sum of positive squares in 6 ways, for example, as 228484 + 27867841 = 478^2 + 5279^2 .

It is not a de Polignac number, because 28096325 - 24 = 28096309 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32630 + ... + 33479.

It is an arithmetic number, because the mean of its divisors is an integer number (3074115).

Almost surely, 228096325 is an apocalyptic number.

28096325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28096325 is a deficient number, since it is larger than the sum of its proper divisors (8793055).

28096325 is a wasteful number, since it uses less digits than its factorization.

28096325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66136 (or 66131 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 28096325 is about 5300.5966645275. The cubic root of 28096325 is about 304.0067122537.

The spelling of 28096325 in words is "twenty-eight million, ninety-six thousand, three hundred twenty-five".

Divisors: 1 5 17 25 85 425 66109 330545 1123853 1652725 5619265 28096325