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231123706 = 21110505623
BaseRepresentation
bin11011100011010…
…10101011111010
3121002220022010021
431301222223322
5433131424311
634533441054
75504343022
oct1561525372
9532808107
10231123706
11109510730
12654a018a
1338b638b8
14229a4a82
1515456171
hexdc6aafa

231123706 has 8 divisors (see below), whose sum is σ = 378202464. Its totient is φ = 105056220.

The previous prime is 231123701. The next prime is 231123713. The reversal of 231123706 is 607321132.

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

It is not an unprimeable number, because it can be changed into a prime (231123701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5252790 + ... + 5252833.

It is an arithmetic number, because the mean of its divisors is an integer number (47275308).

Almost surely, 2231123706 is an apocalyptic number.

231123706 is a deficient number, since it is larger than the sum of its proper divisors (147078758).

231123706 is a wasteful number, since it uses less digits than its factorization.

231123706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10505636.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 231123706 is about 15202.7532374896. The cubic root of 231123706 is about 613.6887531850.

Adding to 231123706 its reverse (607321132), we get a palindrome (838444838).

The spelling of 231123706 in words is "two hundred thirty-one million, one hundred twenty-three thousand, seven hundred six".

Divisors: 1 2 11 22 10505623 21011246 115561853 231123706