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231320230 = 2523132023
BaseRepresentation
bin11011100100110…
…10101010100110
3121010021021200221
431302122222212
5433204221410
634541554554
75506122001
oct1562325246
9533237627
10231320230
11109635349
1265575a5a
1338c0219b
1422a16538
15154944da
hexdc9aaa6

231320230 has 8 divisors (see below), whose sum is σ = 416376432. Its totient is φ = 92528088.

The previous prime is 231320227. The next prime is 231320251. The reversal of 231320230 is 32023132.

231320230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11566002 + ... + 11566021.

It is an arithmetic number, because the mean of its divisors is an integer number (52047054).

Almost surely, 2231320230 is an apocalyptic number.

231320230 is a deficient number, since it is larger than the sum of its proper divisors (185056202).

231320230 is a wasteful number, since it uses less digits than its factorization.

231320230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23132030.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 231320230 is about 15209.2152986273. The cubic root of 231320230 is about 613.8626433259.

Adding to 231320230 its reverse (32023132), we get a palindrome (263343362).

The spelling of 231320230 in words is "two hundred thirty-one million, three hundred twenty thousand, two hundred thirty".

Divisors: 1 2 5 10 23132023 46264046 115660115 231320230