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228885 = 3515259
BaseRepresentation
bin110111111000010101
3102121222020
4313320111
524311020
64523353
71642206
oct677025
9377866
10228885
11146a68
12b0559
1380247
1547c40
hex37e15

228885 has 8 divisors (see below), whose sum is σ = 366240. Its totient is φ = 122064.

The previous prime is 228883. The next prime is 228887. The reversal of 228885 is 588822.

It is an interprime number because it is at equal distance from previous prime (228883) and next prime (228887).

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

It is not a de Polignac number, because 228885 - 21 = 228883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7615 + ... + 7644.

It is an arithmetic number, because the mean of its divisors is an integer number (45780).

2228885 is an apocalyptic number.

It is an amenable number.

228885 is a deficient number, since it is larger than the sum of its proper divisors (137355).

228885 is a wasteful number, since it uses less digits than its factorization.

228885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15267.

The product of its digits is 10240, while the sum is 33.

The square root of 228885 is about 478.4192721871. The cubic root of 228885 is about 61.1700887624.

The spelling of 228885 in words is "two hundred twenty-eight thousand, eight hundred eighty-five".

Divisors: 1 3 5 15 15259 45777 76295 228885