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28750314 = 237167489
BaseRepresentation
bin110110110101…
…1000111101010
32000002200000110
41231223013222
524330002224
62504115150
7466242105
oct155530752
960080013
1028750314
111525759a
129765ab6
135c58228
143b6573c
1527cd929
hex1b6b1ea

28750314 has 16 divisors (see below), whose sum is σ = 58311360. Its totient is φ = 9448320.

The previous prime is 28750301. The next prime is 28750321. The reversal of 28750314 is 41305782.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33319 + ... + 34170.

It is an arithmetic number, because the mean of its divisors is an integer number (3644460).

Almost surely, 228750314 is an apocalyptic number.

28750314 is an abundant number, since it is smaller than the sum of its proper divisors (29561046).

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

28750314 is a wasteful number, since it uses less digits than its factorization.

28750314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67565.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 28750314 is about 5361.9319279528. The cubic root of 28750314 is about 306.3473990354.

The spelling of 28750314 in words is "twenty-eight million, seven hundred fifty thousand, three hundred fourteen".

Divisors: 1 2 3 6 71 142 213 426 67489 134978 202467 404934 4791719 9583438 14375157 28750314