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231012107 = 534358719
BaseRepresentation
bin11011100010011…
…11011100001011
3121002200122000222
431301033130023
5433114341412
634531220255
75503366454
oct1561173413
9532618028
10231012107
111094448a7
126544768b
1338b24b71
142297612b
1515433072
hexdc4f70b

231012107 has 4 divisors (see below), whose sum is σ = 235370880. Its totient is φ = 226653336.

The previous prime is 231012101. The next prime is 231012109. The reversal of 231012107 is 701210132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231012107 - 24 = 231012091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231012101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2179307 + ... + 2179412.

It is an arithmetic number, because the mean of its divisors is an integer number (58842720).

Almost surely, 2231012107 is an apocalyptic number.

231012107 is a deficient number, since it is larger than the sum of its proper divisors (4358773).

231012107 is an equidigital number, since it uses as much as digits as its factorization.

231012107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4358772.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 231012107 is about 15199.0824394106. The cubic root of 231012107 is about 613.5899632651.

Adding to 231012107 its reverse (701210132), we get a palindrome (932222239).

The spelling of 231012107 in words is "two hundred thirty-one million, twelve thousand, one hundred seven".

Divisors: 1 53 4358719 231012107