Search a number
-
+
23231142017 = 32577132681
BaseRepresentation
bin10101101000101011…
…110001100010000001
32012222000111021211022
4111220223301202001
5340034133021032
614401111555225
71451455310006
oct255053614201
965860437738
1023231142017
119941412926
12460408bb15
132262c2b1a5
1411a54998ad
1590e76b512
hex568af1881

23231142017 has 4 divisors (see below), whose sum is σ = 23238277956. Its totient is φ = 23224006080.

The previous prime is 23231141959. The next prime is 23231142023. The reversal of 23231142017 is 71024113232.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18845523841 + 4385618176 = 137279^2 + 66224^2 .

It is a cyclic number.

It is not a de Polignac number, because 23231142017 - 26 = 23231141953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23231142037) 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, 3563084 + ... + 3569597.

It is an arithmetic number, because the mean of its divisors is an integer number (5809569489).

Almost surely, 223231142017 is an apocalyptic number.

It is an amenable number.

23231142017 is a deficient number, since it is larger than the sum of its proper divisors (7135939).

23231142017 is an equidigital number, since it uses as much as digits as its factorization.

23231142017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7135938.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 23231142017 its reverse (71024113232), we get a palindrome (94255255249).

The spelling of 23231142017 in words is "twenty-three billion, two hundred thirty-one million, one hundred forty-two thousand, seventeen".

Divisors: 1 3257 7132681 23231142017