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30233 = 72617
BaseRepresentation
bin111011000011001
31112110202
413120121
51431413
6351545
7154100
oct73031
945422
1030233
1120795
12155b5
13109b8
14b037
158e58
hex7619

30233 has 6 divisors (see below), whose sum is σ = 35226. Its totient is φ = 25872.

The previous prime is 30223. The next prime is 30241. The reversal of 30233 is 33203.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17689 + 12544 = 133^2 + 112^2 .

It is not a de Polignac number, because 30233 - 26 = 30169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260 + ... + 357.

It is an arithmetic number, because the mean of its divisors is an integer number (5871).

230233 is an apocalyptic number.

It is an amenable number.

30233 is a deficient number, since it is larger than the sum of its proper divisors (4993).

30233 is an equidigital number, since it uses as much as digits as its factorization.

30233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 11.

The square root of 30233 is about 173.8763928772. The cubic root of 30233 is about 31.1525604931.

Adding to 30233 its reverse (33203), we get a palindrome (63436).

The spelling of 30233 in words is "thirty thousand, two hundred thirty-three".

Divisors: 1 7 49 617 4319 30233