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232253231 = 733179033
BaseRepresentation
bin11011101011111…
…10011100101111
3121012000200112112
431311332130233
5433424100411
635013554235
75520056060
oct1565763457
9535020475
10232253231
1110a112321
126594597b
133916aa62
1422bba567
15155cab8b
hexdd7e72f

232253231 has 4 divisors (see below), whose sum is σ = 265432272. Its totient is φ = 199074192.

The previous prime is 232253221. The next prime is 232253239. The reversal of 232253231 is 132352232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-232253231 is a prime.

It is a super-2 number, since 2×2322532312 = 107883126619878722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232253197 and 232253206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232253239) 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, 16589510 + ... + 16589523.

It is an arithmetic number, because the mean of its divisors is an integer number (66358068).

Almost surely, 2232253231 is an apocalyptic number.

232253231 is a deficient number, since it is larger than the sum of its proper divisors (33179041).

232253231 is an equidigital number, since it uses as much as digits as its factorization.

232253231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33179040.

The product of its digits is 2160, while the sum is 23.

The square root of 232253231 is about 15239.8566594309. The cubic root of 232253231 is about 614.6868487480.

Subtracting from 232253231 its reverse (132352232), we obtain a palindrome (99900999).

The spelling of 232253231 in words is "two hundred thirty-two million, two hundred fifty-three thousand, two hundred thirty-one".

Divisors: 1 7 33179033 232253231