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228454 = 21031109
BaseRepresentation
bin110111110001100110
3102121101021
4313301212
524302304
64521354
71641022
oct676146
9377337
10228454
11146706
12b025a
137cca5
145d382
1547a54
hex37c66

228454 has 8 divisors (see below), whose sum is σ = 346320. Its totient is φ = 113016.

The previous prime is 228451. The next prime is 228457. The reversal of 228454 is 454822.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (228451) and next prime (228457).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228451) 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 3 ways as a sum of consecutive naturals, for example, 349 + ... + 760.

It is an arithmetic number, because the mean of its divisors is an integer number (43290).

2228454 is an apocalyptic number.

228454 is a deficient number, since it is larger than the sum of its proper divisors (117866).

228454 is a wasteful number, since it uses less digits than its factorization.

228454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its digits is 2560, while the sum is 25.

The square root of 228454 is about 477.9686182167. The cubic root of 228454 is about 61.1316693612.

The spelling of 228454 in words is "two hundred twenty-eight thousand, four hundred fifty-four".

Divisors: 1 2 103 206 1109 2218 114227 228454