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231130234 = 23113727211
BaseRepresentation
bin11011100011011…
…00010001111010
3121002220122002001
431301230101322
5433132131414
634533531214
75504401036
oct1561542172
9532818061
10231130234
11109515625
12654a3b0a
1338b6686a
14229a71c6
1515458074
hexdc6c47a

231130234 has 16 divisors (see below), whose sum is σ = 360504576. Its totient is φ = 111016800.

The previous prime is 231130217. The next prime is 231130253. The reversal of 231130234 is 432031132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5112 + ... + 22099.

It is an arithmetic number, because the mean of its divisors is an integer number (22531536).

Almost surely, 2231130234 is an apocalyptic number.

231130234 is a deficient number, since it is larger than the sum of its proper divisors (129374342).

231130234 is a wasteful number, since it uses less digits than its factorization.

231130234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27381.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 231130234 is about 15202.9679339266. The cubic root of 231130234 is about 613.6945309314.

Adding to 231130234 its reverse (432031132), we get a palindrome (663161366).

The spelling of 231130234 in words is "two hundred thirty-one million, one hundred thirty thousand, two hundred thirty-four".

Divisors: 1 2 31 62 137 274 4247 8494 27211 54422 843541 1687082 3727907 7455814 115565117 231130234