Search a number
228347 = 732621
BaseRepresentation
bin110111101111111011
3102121020022
4313233323
524301342
64521055
71640510
oct675773
9377208
10228347
11146619
12b018b
137cc22
145d307
15479d2
hex37bfb

228347 has 4 divisors (see below), whose sum is σ = 260976. Its totient is φ = 195720.

The previous prime is 228341. The next prime is 228353. The reversal of 228347 is 743822.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (228341) and next prime (228353).

It is not a de Polignac number, because 228347 - 24 = 228331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228341) 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, 16304 + ... + 16317.

It is an arithmetic number, because the mean of its divisors is an integer number (65244).

2228347 is an apocalyptic number.

228347 is a deficient number, since it is larger than the sum of its proper divisors (32629).

228347 is an equidigital number, since it uses as much as digits as its factorization.

228347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32628.

The product of its digits is 2688, while the sum is 26.

The square root of 228347 is about 477.8566730726. The cubic root of 228347 is about 61.1221238800.

It can be divided in two parts, 228 and 347, that added together give a palindrome (575).

The spelling of 228347 in words is "two hundred twenty-eight thousand, three hundred forty-seven".

Divisors: 1 7 32621 228347