Search a number
-
+
23488819 = 231021253
BaseRepresentation
bin101100110011…
…0100100110011
31122012100121021
41121212210303
522003120234
62155240311
7403436344
oct131464463
948170537
1023488819
1112293552
127a49097
134b35413
1431960cb
1520de9b4
hex1666933

23488819 has 4 divisors (see below), whose sum is σ = 24510096. Its totient is φ = 22467544.

The previous prime is 23488783. The next prime is 23488837. The reversal of 23488819 is 91888432.

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-23488819 is a prime.

It is a super-2 number, since 2×234888192 = 1103449236029522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23488219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510604 + ... + 510649.

It is an arithmetic number, because the mean of its divisors is an integer number (6127524).

Almost surely, 223488819 is an apocalyptic number.

23488819 is a deficient number, since it is larger than the sum of its proper divisors (1021277).

23488819 is a wasteful number, since it uses less digits than its factorization.

23488819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021276.

The product of its digits is 110592, while the sum is 43.

The square root of 23488819 is about 4846.5264881150. The cubic root of 23488819 is about 286.3872815828.

The spelling of 23488819 in words is "twenty-three million, four hundred eighty-eight thousand, eight hundred nineteen".

Divisors: 1 23 1021253 23488819