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13233423 = 37630163
BaseRepresentation
bin110010011110…
…110100001111
3220220022211210
4302132310033
511341432143
61151345503
7220324260
oct62366417
926808753
1013233423
117519515
124522293
132984538
141a86967
151266033
hexc9ed0f

13233423 has 8 divisors (see below), whose sum is σ = 20165248. Its totient is φ = 7561944.

The previous prime is 13233413. The next prime is 13233433. The reversal of 13233423 is 32433231.

It is an interprime number because it is at equal distance from previous prime (13233413) and next prime (13233433).

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

It is not a de Polignac number, because 13233423 - 26 = 13233359 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 630163 = 13233423 / (1 + 3 + 2 + 3 + 3 + 4 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13233423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315061 + ... + 315102.

It is an arithmetic number, because the mean of its divisors is an integer number (2520656).

Almost surely, 213233423 is an apocalyptic number.

13233423 is a deficient number, since it is larger than the sum of its proper divisors (6931825).

13233423 is an equidigital number, since it uses as much as digits as its factorization.

13233423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630173.

The product of its digits is 1296, while the sum is 21.

The square root of 13233423 is about 3637.7772059322. Note that the first 3 decimals coincide. The cubic root of 13233423 is about 236.5324507348.

Adding to 13233423 its reverse (32433231), we get a palindrome (45666654).

The spelling of 13233423 in words is "thirteen million, two hundred thirty-three thousand, four hundred twenty-three".

Divisors: 1 3 7 21 630163 1890489 4411141 13233423