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232930321 = 1317917717
BaseRepresentation
bin11011110001000…
…11110000010001
3121020022002022221
431320203300101
5434112232241
635040301041
75525606101
oct1570436021
9536262287
10232930321
1110a534aa8
1266011781
1339346cc0
1422d15201
15156b15d1
hexde23c11

232930321 has 4 divisors (see below), whose sum is σ = 250848052. Its totient is φ = 215012592.

The previous prime is 232930303. The next prime is 232930351. The reversal of 232930321 is 123039232.

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

It can be written as a sum of positive squares in 2 ways, for example, as 29582721 + 203347600 = 5439^2 + 14260^2 .

It is a cyclic number.

It is not a de Polignac number, because 232930321 - 27 = 232930193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (232930301) 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 3 ways as a sum of consecutive naturals, for example, 8958846 + ... + 8958871.

It is an arithmetic number, because the mean of its divisors is an integer number (62712013).

Almost surely, 2232930321 is an apocalyptic number.

It is an amenable number.

232930321 is a deficient number, since it is larger than the sum of its proper divisors (17917731).

232930321 is a wasteful number, since it uses less digits than its factorization.

232930321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17917730.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 232930321 is about 15262.0549402759. The cubic root of 232930321 is about 615.2836033069.

Adding to 232930321 its reverse (123039232), we get a palindrome (355969553).

The spelling of 232930321 in words is "two hundred thirty-two million, nine hundred thirty thousand, three hundred twenty-one".

Divisors: 1 13 17917717 232930321