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228183 = 3233307
BaseRepresentation
bin110111101101010111
3102121000020
4313231113
524300213
64520223
71640154
oct675527
9377006
10228183
1114648a
12b0073
137cb27
145d22b
1547923
hex37b57

228183 has 8 divisors (see below), whose sum is σ = 317568. Its totient is φ = 145464.

The previous prime is 228181. The next prime is 228197. The reversal of 228183 is 381822.

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

It is not a de Polignac number, because 228183 - 21 = 228181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228181) by changing a digit.

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, 1585 + ... + 1722.

It is an arithmetic number, because the mean of its divisors is an integer number (39696).

2228183 is an apocalyptic number.

228183 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

228183 is a deficient number, since it is larger than the sum of its proper divisors (89385).

228183 is a wasteful number, since it uses less digits than its factorization.

228183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333.

The product of its digits is 768, while the sum is 24.

The square root of 228183 is about 477.6850426798. The cubic root of 228183 is about 61.1074876333.

The spelling of 228183 in words is "two hundred twenty-eight thousand, one hundred eighty-three".

Divisors: 1 3 23 69 3307 9921 76061 228183