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28825950 = 2352192173
BaseRepresentation
bin110110111110…
…1100101011110
32000020111202210
41231331211132
524334412300
62505501250
7500005446
oct155754536
960214683
1028825950
11152a93aa
1297a1826
135c8379a
143b85126
1527e6050
hex1b7d95e

28825950 has 24 divisors (see below), whose sum is σ = 71488728. Its totient is φ = 7686880.

The previous prime is 28825949. The next prime is 28825957. The reversal of 28825950 is 5952882.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28825899 and 28825908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28825957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95937 + ... + 96236.

It is an arithmetic number, because the mean of its divisors is an integer number (2978697).

Almost surely, 228825950 is an apocalyptic number.

28825950 is an abundant number, since it is smaller than the sum of its proper divisors (42662778).

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

28825950 is a wasteful number, since it uses less digits than its factorization.

28825950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192188 (or 192183 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 28825950 is about 5368.9803501224. The cubic root of 28825950 is about 306.6158088840.

The spelling of 28825950 in words is "twenty-eight million, eight hundred twenty-five thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 192173 384346 576519 960865 1153038 1921730 2882595 4804325 5765190 9608650 14412975 28825950