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28274 = 267211
BaseRepresentation
bin110111001110010
31102210012
412321302
51401044
6334522
7145301
oct67162
942705
1028274
111a274
1214442
13cb3c
14a438
15859e
hex6e72

28274 has 8 divisors (see below), whose sum is σ = 43248. Its totient is φ = 13860.

The previous prime is 28229. The next prime is 28277. The reversal of 28274 is 47282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 28274.

It is not an unprimeable number, because it can be changed into a prime (28277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29 + ... + 239.

It is an arithmetic number, because the mean of its divisors is an integer number (5406).

228274 is an apocalyptic number.

28274 is a deficient number, since it is larger than the sum of its proper divisors (14974).

28274 is a wasteful number, since it uses less digits than its factorization.

28274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280.

The product of its digits is 896, while the sum is 23.

The square root of 28274 is about 168.1487436765. The cubic root of 28274 is about 30.4646190104.

The spelling of 28274 in words is "twenty-eight thousand, two hundred seventy-four".

Divisors: 1 2 67 134 211 422 14137 28274