Base | Representation |
---|---|
bin | 110001101010… |
… | …010100110011 |
3 | 220111101220200 |
4 | 301222110303 |
5 | 11313042134 |
6 | 1143010243 |
7 | 215440401 |
oct | 61522463 |
9 | 26441820 |
10 | 13018419 |
11 | 7391a27 |
12 | 4439983 |
13 | 290a70b |
14 | 1a2c471 |
15 | 1222499 |
hex | c6a533 |
13018419 has 24 divisors (see below), whose sum is σ = 20092800. Its totient is φ = 8104320.
The previous prime is 13018403. The next prime is 13018451. The reversal of 13018419 is 91481031.
13018419 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 13018419 - 24 = 13018403 is a prime.
It is a super-2 number, since 2×130184192 = 338958466519122, which contains 22 as substring.
It is a plaindrome in base 15.
It is a junction number, because it is equal to n+sod(n) for n = 13018392 and 13018401.
It is not an unprimeable number, because it can be changed into a prime (13018459) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7287 + ... + 8895.
It is an arithmetic number, because the mean of its divisors is an integer number (837200).
Almost surely, 213018419 is an apocalyptic number.
13018419 is a deficient number, since it is larger than the sum of its proper divisors (7074381).
13018419 is a wasteful number, since it uses less digits than its factorization.
13018419 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1675 (or 1672 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 27.
The square root of 13018419 is about 3608.1046270861. The cubic root of 13018419 is about 235.2444656837.
The spelling of 13018419 in words is "thirteen million, eighteen thousand, four hundred nineteen".
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