Search a number
-
+
231014123 = 307752489
BaseRepresentation
bin11011100010011…
…11111011101011
3121002200201210122
431301033323223
5433114422443
634531233455
75503405364
oct1561177353
9532621718
10231014123
1110944636a
126544888b
1338b25a62
1422976b6b
1515433968
hexdc4feeb

231014123 has 4 divisors (see below), whose sum is σ = 231766920. Its totient is φ = 230261328.

The previous prime is 231014111. The next prime is 231014153. The reversal of 231014123 is 321410132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-231014123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231014153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375938 + ... + 376551.

It is an arithmetic number, because the mean of its divisors is an integer number (57941730).

Almost surely, 2231014123 is an apocalyptic number.

231014123 is a deficient number, since it is larger than the sum of its proper divisors (752797).

231014123 is an equidigital number, since it uses as much as digits as its factorization.

231014123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752796.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 231014123 is about 15199.1487590588. The cubic root of 231014123 is about 613.5917481553.

Adding to 231014123 its reverse (321410132), we get a palindrome (552424255).

The spelling of 231014123 in words is "two hundred thirty-one million, fourteen thousand, one hundred twenty-three".

Divisors: 1 307 752489 231014123