Base | Representation |
---|---|
bin | 110010111111… |
… | …101110010101 |
3 | 221011011202000 |
4 | 302333232111 |
5 | 11410240323 |
6 | 1154305513 |
7 | 221425245 |
oct | 62775625 |
9 | 27134660 |
10 | 13368213 |
11 | 7600811 |
12 | 4588299 |
13 | 2a009b1 |
14 | 1abdb25 |
15 | 1290e43 |
hex | cbfb95 |
13368213 has 8 divisors (see below), whose sum is σ = 19804800. Its totient is φ = 8912124.
The previous prime is 13368209. The next prime is 13368233. The reversal of 13368213 is 31286331.
It is a happy number.
It is not a de Polignac number, because 13368213 - 22 = 13368209 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 495119 = 13368213 / (1 + 3 + 3 + 6 + 8 + 2 + 1 + 3).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13368203) 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, 247533 + ... + 247586.
It is an arithmetic number, because the mean of its divisors is an integer number (2475600).
Almost surely, 213368213 is an apocalyptic number.
It is an amenable number.
13368213 is a deficient number, since it is larger than the sum of its proper divisors (6436587).
13368213 is an equidigital number, since it uses as much as digits as its factorization.
13368213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 495128 (or 495122 counting only the distinct ones).
The product of its digits is 2592, while the sum is 27.
The square root of 13368213 is about 3656.2566923016. The cubic root of 13368213 is about 237.3328123454.
The spelling of 13368213 in words is "thirteen million, three hundred sixty-eight thousand, two hundred thirteen".
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