Base | Representation |
---|---|
bin | 110001111111… |
… | …010001010111 |
3 | 220122202121022 |
4 | 301333101113 |
5 | 11323313330 |
6 | 1144511355 |
7 | 216245465 |
oct | 61772127 |
9 | 26582538 |
10 | 13104215 |
11 | 7440433 |
12 | 447b55b |
13 | 293a797 |
14 | 1a51835 |
15 | 123cae5 |
hex | c7f457 |
13104215 has 16 divisors (see below), whose sum is σ = 16299360. Its totient is φ = 10106880.
The previous prime is 13104209. The next prime is 13104251. The reversal of 13104215 is 51240131.
It is not a de Polignac number, because 13104215 - 26 = 13104151 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 13104193 and 13104202.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19556 + ... + 20214.
It is an arithmetic number, because the mean of its divisors is an integer number (1018710).
Almost surely, 213104215 is an apocalyptic number.
13104215 is a deficient number, since it is larger than the sum of its proper divisors (3195145).
13104215 is an equidigital number, since it uses as much as digits as its factorization.
13104215 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 802.
The product of its (nonzero) digits is 120, while the sum is 17.
The square root of 13104215 is about 3619.9744474236. The cubic root of 13104215 is about 235.7601160612.
Adding to 13104215 its reverse (51240131), we get a palindrome (64344346).
The spelling of 13104215 in words is "thirteen million, one hundred four thousand, two hundred fifteen".
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