Base | Representation |
---|---|
bin | 110010011111… |
… | …111111001011 |
3 | 220220120102102 |
4 | 302133333023 |
5 | 11342110334 |
6 | 1151424015 |
7 | 220344251 |
oct | 62377713 |
9 | 26816372 |
10 | 13238219 |
11 | 7522085 |
12 | 452500b |
13 | 2986787 |
14 | 1a885d1 |
15 | 126767e |
hex | c9ffcb |
13238219 has 4 divisors (see below), whose sum is σ = 13262544. Its totient is φ = 13213896.
The previous prime is 13238207. The next prime is 13238233. The reversal of 13238219 is 91283231.
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 13238219 - 28 = 13237963 is a prime.
It is a super-2 number, since 2×132382192 = 350500884583922, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13238191 and 13238200.
It is not an unprimeable number, because it can be changed into a prime (13238249) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11327 + ... + 12440.
It is an arithmetic number, because the mean of its divisors is an integer number (3315636).
Almost surely, 213238219 is an apocalyptic number.
13238219 is a deficient number, since it is larger than the sum of its proper divisors (24325).
13238219 is an equidigital number, since it uses as much as digits as its factorization.
13238219 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24324.
The product of its digits is 2592, while the sum is 29.
The square root of 13238219 is about 3638.4363399680. The cubic root of 13238219 is about 236.5610216399.
The spelling of 13238219 in words is "thirteen million, two hundred thirty-eight thousand, two hundred nineteen".
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