Base | Representation |
---|---|
bin | 110010011001… |
… | …110101010011 |
3 | 220212021211210 |
4 | 302121311103 |
5 | 11340304021 |
6 | 1151111203 |
7 | 220210620 |
oct | 62316523 |
9 | 26767753 |
10 | 13213011 |
11 | 7505149 |
12 | 4512503 |
13 | 2978166 |
14 | 1a7d347 |
15 | 125ee76 |
hex | c99d53 |
13213011 has 16 divisors (see below), whose sum is σ = 20217600. Its totient is φ = 7519008.
The previous prime is 13213001. The next prime is 13213043. The reversal of 13213011 is 11031231.
It is not a de Polignac number, because 13213011 - 27 = 13212883 is a prime.
It is a super-2 number, since 2×132130112 = 349167319372242, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (13213001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4480 + ... + 6818.
It is an arithmetic number, because the mean of its divisors is an integer number (1263600).
Almost surely, 213213011 is an apocalyptic number.
13213011 is a deficient number, since it is larger than the sum of its proper divisors (7004589).
13213011 is a wasteful number, since it uses less digits than its factorization.
13213011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2618.
The product of its (nonzero) digits is 18, while the sum is 12.
The square root of 13213011 is about 3634.9705638423. The cubic root of 13213011 is about 236.4107743578.
Adding to 13213011 its reverse (11031231), we get a palindrome (24244242).
The spelling of 13213011 in words is "thirteen million, two hundred thirteen thousand, eleven".
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