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228903 = 3411861
BaseRepresentation
bin110111111000100111
3102121222220
4313320213
524311103
64523423
71642233
oct677047
9377886
10228903
11146a84
12b0573
138025c
145d5c3
1547c53
hex37e27

228903 has 8 divisors (see below), whose sum is σ = 312816. Its totient is φ = 148800.

The previous prime is 228901. The next prime is 228911. The reversal of 228903 is 309822.

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

It is not a de Polignac number, because 228903 - 21 = 228901 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808 + ... + 1053.

It is an arithmetic number, because the mean of its divisors is an integer number (39102).

2228903 is an apocalyptic number.

228903 is a deficient number, since it is larger than the sum of its proper divisors (83913).

228903 is a wasteful number, since it uses less digits than its factorization.

228903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 228903 is about 478.4380837684. The cubic root of 228903 is about 61.1716922354.

The spelling of 228903 in words is "two hundred twenty-eight thousand, nine hundred three".

Divisors: 1 3 41 123 1861 5583 76301 228903