Base | Representation |
---|---|
bin | 110001101010… |
… | …110100000011 |
3 | 220111111122202 |
4 | 301222310003 |
5 | 11313123134 |
6 | 1143023415 |
7 | 215446256 |
oct | 61526403 |
9 | 26444582 |
10 | 13020419 |
11 | 7393485 |
12 | 443ab6b |
13 | 290b5b9 |
14 | 1a2d09d |
15 | 1222d7e |
hex | c6ad03 |
13020419 has 4 divisors (see below), whose sum is σ = 13786344. Its totient is φ = 12254496.
The previous prime is 13020383. The next prime is 13020431. The reversal of 13020419 is 91402031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91402031 = 7 ⋅13057433.
It is a cyclic number.
It is not a de Polignac number, because 13020419 - 216 = 12954883 is a prime.
It is a super-2 number, since 2×130204192 = 339062621871122, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 13020419.
It is not an unprimeable number, because it can be changed into a prime (13020439) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382937 + ... + 382970.
It is an arithmetic number, because the mean of its divisors is an integer number (3446586).
Almost surely, 213020419 is an apocalyptic number.
13020419 is a deficient number, since it is larger than the sum of its proper divisors (765925).
13020419 is an equidigital number, since it uses as much as digits as its factorization.
13020419 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 765924.
The product of its (nonzero) digits is 216, while the sum is 20.
The square root of 13020419 is about 3608.3817702677. The cubic root of 13020419 is about 235.2565118172.
The spelling of 13020419 in words is "thirteen million, twenty thousand, four hundred nineteen".
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