Search a number
-
+
23163405 = 351544227
BaseRepresentation
bin101100001011…
…1001000001101
31121120211012220
41120113020031
521412212110
62144245553
7400612536
oct130271015
947524186
1023163405
1112091011
1279108b9
134a50275
14310d68d
152078370
hex161720d

23163405 has 8 divisors (see below), whose sum is σ = 37061472. Its totient is φ = 12353808.

The previous prime is 23163397. The next prime is 23163409. The reversal of 23163405 is 50436132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23163405 - 23 = 23163397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23163409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772099 + ... + 772128.

It is an arithmetic number, because the mean of its divisors is an integer number (4632684).

Almost surely, 223163405 is an apocalyptic number.

It is an amenable number.

23163405 is a deficient number, since it is larger than the sum of its proper divisors (13898067).

23163405 is a wasteful number, since it uses less digits than its factorization.

23163405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544235.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 23163405 is about 4812.8375206317. The cubic root of 23163405 is about 285.0585906010.

Adding to 23163405 its reverse (50436132), we get a palindrome (73599537).

It can be divided in two parts, 231 and 63405, that added together give a palindrome (63636).

The spelling of 23163405 in words is "twenty-three million, one hundred sixty-three thousand, four hundred five".

Divisors: 1 3 5 15 1544227 4632681 7721135 23163405