Base | Representation |
---|---|
bin | 110010011001… |
… | …111001111011 |
3 | 220212022020202 |
4 | 302121321323 |
5 | 11340311212 |
6 | 1151112415 |
7 | 220211522 |
oct | 62317173 |
9 | 26768222 |
10 | 13213307 |
11 | 7505398 |
12 | 451270b |
13 | 2978333 |
14 | 1a7d4b9 |
15 | 12600c2 |
hex | c99e7b |
13213307 has 8 divisors (see below), whose sum is σ = 13416480. Its totient is φ = 13011840.
The previous prime is 13213297. The next prime is 13213327. The reversal of 13213307 is 70331231.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13213307 - 28 = 13213051 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13213327) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26018 + ... + 26520.
It is an arithmetic number, because the mean of its divisors is an integer number (1677060).
Almost surely, 213213307 is an apocalyptic number.
13213307 is a deficient number, since it is larger than the sum of its proper divisors (203173).
13213307 is a wasteful number, since it uses less digits than its factorization.
13213307 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 853.
The product of its (nonzero) digits is 378, while the sum is 20.
The square root of 13213307 is about 3635.0112792122. The cubic root of 13213307 is about 236.4125397154.
Adding to 13213307 its reverse (70331231), we get a palindrome (83544538).
The spelling of 13213307 in words is "thirteen million, two hundred thirteen thousand, three hundred seven".
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