Base | Representation |
---|---|
bin | 110010011100… |
… | …010001100001 |
3 | 220212210120002 |
4 | 302130101201 |
5 | 11341114014 |
6 | 1151225345 |
7 | 220252022 |
oct | 62342141 |
9 | 26783502 |
10 | 13223009 |
11 | 7511708 |
12 | 4518255 |
13 | 297c887 |
14 | 1a82c49 |
15 | 1262dde |
hex | c9c461 |
13223009 has 8 divisors (see below), whose sum is σ = 13418592. Its totient is φ = 13029120.
The previous prime is 13223003. The next prime is 13223029. The reversal of 13223009 is 90032231.
13223009 is nontrivially palindromic in base 7.
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 13223009 - 220 = 12174433 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (13223003) 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, 25022 + ... + 25544.
It is an arithmetic number, because the mean of its divisors is an integer number (1677324).
Almost surely, 213223009 is an apocalyptic number.
It is an amenable number.
13223009 is a deficient number, since it is larger than the sum of its proper divisors (195583).
13223009 is a wasteful number, since it uses less digits than its factorization.
13223009 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 847.
The product of its (nonzero) digits is 324, while the sum is 20.
The square root of 13223009 is about 3636.3455556369. The cubic root of 13223009 is about 236.4703882995.
The spelling of 13223009 in words is "thirteen million, two hundred twenty-three thousand, nine".
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