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231110012 = 2278253929
BaseRepresentation
bin11011100011001…
…11010101111100
3121002212121100002
431301213111330
5433131010022
634533253432
75504255060
oct1561472574
9532777302
10231110012
11109501411
1265494278
1338b5a5b3
142299daa0
1515452092
hexdc6757c

231110012 has 12 divisors (see below), whose sum is σ = 462220080. Its totient is φ = 99047136.

The previous prime is 231109987. The next prime is 231110017. The reversal of 231110012 is 210011132.

231110012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

231110012 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 231109975 and 231110002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231110017) 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, 4126937 + ... + 4126992.

It is an arithmetic number, because the mean of its divisors is an integer number (38518340).

Almost surely, 2231110012 is an apocalyptic number.

It is an amenable number.

231110012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231110012 is a wasteful number, since it uses less digits than its factorization.

231110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8253940 (or 8253938 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 231110012 is about 15202.3028518708. The cubic root of 231110012 is about 613.6766326632.

Adding to 231110012 its reverse (210011132), we get a palindrome (441121144).

The spelling of 231110012 in words is "two hundred thirty-one million, one hundred ten thousand, twelve".

Divisors: 1 2 4 7 14 28 8253929 16507858 33015716 57777503 115555006 231110012