Search a number
-
+
23102423 = 191215917
BaseRepresentation
bin101100000100…
…0001111010111
31121110201120022
41120020033113
521403234143
62143055355
7400240001
oct130101727
947421508
1023102423
111204a213
1278a155b
134a2b596
1430d5371
152065268
hex16083d7

23102423 has 4 divisors (see below), whose sum is σ = 24318360. Its totient is φ = 21886488.

The previous prime is 23102413. The next prime is 23102449. The reversal of 23102423 is 32420132.

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 23102423 - 24 = 23102407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23102413) 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, 607940 + ... + 607977.

It is an arithmetic number, because the mean of its divisors is an integer number (6079590).

Almost surely, 223102423 is an apocalyptic number.

23102423 is a deficient number, since it is larger than the sum of its proper divisors (1215937).

23102423 is a wasteful number, since it uses less digits than its factorization.

23102423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215936.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23102423 is about 4806.4979975030. The cubic root of 23102423 is about 284.8082140497.

Adding to 23102423 its reverse (32420132), we get a palindrome (55522555).

The spelling of 23102423 in words is "twenty-three million, one hundred two thousand, four hundred twenty-three".

Divisors: 1 19 1215917 23102423