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231043234 = 2236182339
BaseRepresentation
bin11011100010101…
…11000010100010
3121002202012201211
431301113002202
5433121340414
634532020334
75503556302
oct1561270242
9532665654
10231043234
11109466224
12654616aa
1338b36096
1422983602
151543c3c4
hexdc570a2

231043234 has 16 divisors (see below), whose sum is σ = 367565760. Its totient is φ = 108686160.

The previous prime is 231043193. The next prime is 231043283. The reversal of 231043234 is 432340132.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 38364 + ... + 43975.

It is an arithmetic number, because the mean of its divisors is an integer number (22972860).

Almost surely, 2231043234 is an apocalyptic number.

231043234 is a deficient number, since it is larger than the sum of its proper divisors (136522526).

231043234 is a wasteful number, since it uses less digits than its factorization.

231043234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82425.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 231043234 is about 15200.1063812067. The cubic root of 231043234 is about 613.6175207775.

Adding to 231043234 its reverse (432340132), we get a palindrome (663383366).

The spelling of 231043234 in words is "two hundred thirty-one million, forty-three thousand, two hundred thirty-four".

Divisors: 1 2 23 46 61 122 1403 2806 82339 164678 1893797 3787594 5022679 10045358 115521617 231043234