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13022123 = 79164837
BaseRepresentation
bin110001101011…
…001110101011
3220111120222212
4301223032223
511313201443
61143035335
7215454242
oct61531653
926446885
1013022123
117394794
12443bb4b
13290c2ca
141a2d959
151223618
hexc6b3ab

13022123 has 4 divisors (see below), whose sum is σ = 13187040. Its totient is φ = 12857208.

The previous prime is 13022099. The next prime is 13022129. The reversal of 13022123 is 32122031.

It is a happy number.

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 13022123 - 26 = 13022059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13022098 and 13022107.

It is not an unprimeable number, because it can be changed into a prime (13022129) 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, 82340 + ... + 82497.

It is an arithmetic number, because the mean of its divisors is an integer number (3296760).

Almost surely, 213022123 is an apocalyptic number.

13022123 is a deficient number, since it is larger than the sum of its proper divisors (164917).

13022123 is an equidigital number, since it uses as much as digits as its factorization.

13022123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164916.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13022123 is about 3608.6178794658. The cubic root of 13022123 is about 235.2667741497.

Adding to 13022123 its reverse (32122031), we get a palindrome (45144154).

The spelling of 13022123 in words is "thirteen million, twenty-two thousand, one hundred twenty-three".

Divisors: 1 79 164837 13022123