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28750094 = 2173732267
BaseRepresentation
bin110110110101…
…1000100001110
32000002122201022
41231223010032
524330000334
62504114142
7466241342
oct155530416
960078638
1028750094
111525740a
129765952
135c580b9
143b65622
1527cd82e
hex1b6b10e

28750094 has 16 divisors (see below), whose sum is σ = 45804528. Its totient is φ = 13487232.

The previous prime is 28750087. The next prime is 28750109. The reversal of 28750094 is 49005782.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 11549 + ... + 13815.

It is an arithmetic number, because the mean of its divisors is an integer number (2862783).

Almost surely, 228750094 is an apocalyptic number.

28750094 is a deficient number, since it is larger than the sum of its proper divisors (17054434).

28750094 is a wasteful number, since it uses less digits than its factorization.

28750094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 28750094 is about 5361.9114129198. The cubic root of 28750094 is about 306.3466176341.

The spelling of 28750094 in words is "twenty-eight million, seven hundred fifty thousand, ninety-four".

Divisors: 1 2 17 34 373 746 2267 4534 6341 12682 38539 77078 845591 1691182 14375047 28750094