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13108423 = 19689917
BaseRepresentation
bin110010000000…
…010011000111
3220122222101011
4302000103013
511323432143
61144543051
7216263656
oct62002307
926588334
1013108423
117443609
124481a87
13293c683
141a5319d
15123de9d
hexc804c7

13108423 has 4 divisors (see below), whose sum is σ = 13798360. Its totient is φ = 12418488.

The previous prime is 13108393. The next prime is 13108427. The reversal of 13108423 is 32480131.

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 13108423 - 29 = 13107911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13108394 and 13108403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13108427) 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, 344940 + ... + 344977.

It is an arithmetic number, because the mean of its divisors is an integer number (3449590).

Almost surely, 213108423 is an apocalyptic number.

13108423 is a deficient number, since it is larger than the sum of its proper divisors (689937).

13108423 is an equidigital number, since it uses as much as digits as its factorization.

13108423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689936.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 13108423 is about 3620.5556203434. Note that the first 3 decimals coincide. The cubic root of 13108423 is about 235.7853489703.

Adding to 13108423 its reverse (32480131), we get a palindrome (45588554).

It can be divided in two parts, 13108 and 423, that added together give a palindrome (13531).

The spelling of 13108423 in words is "thirteen million, one hundred eight thousand, four hundred twenty-three".

Divisors: 1 19 689917 13108423