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13004123 = 111677079
BaseRepresentation
bin110001100110…
…110101011011
3220110200022012
4301212311123
511312112443
61142420135
7215350616
oct61466533
926420265
1013004123
117382210
12443164b
132904062
141a2717d
15121d118
hexc66d5b

13004123 has 8 divisors (see below), whose sum is σ = 14273280. Its totient is φ = 11749480.

The previous prime is 13004087. The next prime is 13004129. The reversal of 13004123 is 32140031.

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

It is a cyclic number.

It is not a de Polignac number, because 13004123 - 210 = 13003099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13004098 and 13004107.

It is not an unprimeable number, because it can be changed into a prime (13004129) 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, 1703 + ... + 5376.

It is an arithmetic number, because the mean of its divisors is an integer number (1784160).

Almost surely, 213004123 is an apocalyptic number.

13004123 is a deficient number, since it is larger than the sum of its proper divisors (1269157).

13004123 is a wasteful number, since it uses less digits than its factorization.

13004123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7257.

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

The square root of 13004123 is about 3606.1229873647. The cubic root of 13004123 is about 235.1583239726.

Adding to 13004123 its reverse (32140031), we get a palindrome (45144154).

The spelling of 13004123 in words is "thirteen million, four thousand, one hundred twenty-three".

Divisors: 1 11 167 1837 7079 77869 1182193 13004123