Search a number
-
+
23002223 = 47489409
BaseRepresentation
bin101011110111…
…1110001101111
31121021122010012
41113233301233
521342032343
62141003435
7366341606
oct127576157
947248105
1023002223
1111a90a02
12785357b
1349c4aaa
1430aaa3d
152045718
hex15efc6f

23002223 has 4 divisors (see below), whose sum is σ = 23491680. Its totient is φ = 22512768.

The previous prime is 23002201. The next prime is 23002237. The reversal of 23002223 is 32220032.

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 23002223 - 28 = 23001967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23002198 and 23002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23002823) 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, 244658 + ... + 244751.

It is an arithmetic number, because the mean of its divisors is an integer number (5872920).

Almost surely, 223002223 is an apocalyptic number.

23002223 is a deficient number, since it is larger than the sum of its proper divisors (489457).

23002223 is an equidigital number, since it uses as much as digits as its factorization.

23002223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489456.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 23002223 is about 4796.0632814841. The cubic root of 23002223 is about 284.3958598875.

Adding to 23002223 its reverse (32220032), we get a palindrome (55222255).

The spelling of 23002223 in words is "twenty-three million, two thousand, two hundred twenty-three".

Divisors: 1 47 489409 23002223