Search a number
BaseRepresentation
bin110010110010…
…001111111111
3221001101000221
4302302033333
511402004043
61153202211
7221105323
oct62621777
927041027
1013313023
1175732a9
124560367
1329b1839
141aa7983
15127e8ed
hexcb23ff

13313023 has 4 divisors (see below), whose sum is σ = 14096160. Its totient is φ = 12529888.

The previous prime is 13313011. The next prime is 13313033. The reversal of 13313023 is 32031331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32031331 = 103930829.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13313023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13312988 and 13313006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313033) 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, 391543 + ... + 391576.

It is an arithmetic number, because the mean of its divisors is an integer number (3524040).

Almost surely, 213313023 is an apocalyptic number.

13313023 is a deficient number, since it is larger than the sum of its proper divisors (783137).

13313023 is an equidigital number, since it uses as much as digits as its factorization.

13313023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783136.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 13313023 is about 3648.7015498667. The cubic root of 13313023 is about 237.0057562976.

Adding to 13313023 its reverse (32031331), we get a palindrome (45344354).

The spelling of 13313023 in words is "thirteen million, three hundred thirteen thousand, twenty-three".

Divisors: 1 17 783119 13313023