Base | Representation |
---|---|
bin | 110010011001… |
… | …010110101001 |
3 | 220212012011010 |
4 | 302121112221 |
5 | 11340223144 |
6 | 1151054133 |
7 | 220202115 |
oct | 62312651 |
9 | 26765133 |
10 | 13211049 |
11 | 7503725 |
12 | 4511349 |
13 | 29772b7 |
14 | 1a7c745 |
15 | 125e5b9 |
hex | c995a9 |
13211049 has 4 divisors (see below), whose sum is σ = 17614736. Its totient is φ = 8807364.
The previous prime is 13210937. The next prime is 13211059. The reversal of 13211049 is 94011231.
13211049 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94011231 = 3 ⋅31337077.
It is not a de Polignac number, because 13211049 - 28 = 13210793 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13211059) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2201839 + ... + 2201844.
It is an arithmetic number, because the mean of its divisors is an integer number (4403684).
Almost surely, 213211049 is an apocalyptic number.
It is an amenable number.
13211049 is a deficient number, since it is larger than the sum of its proper divisors (4403687).
13211049 is an equidigital number, since it uses as much as digits as its factorization.
13211049 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4403686.
The product of its (nonzero) digits is 216, while the sum is 21.
The square root of 13211049 is about 3634.7006754339. The cubic root of 13211049 is about 236.3990722333.
The spelling of 13211049 in words is "thirteen million, two hundred eleven thousand, forty-nine".
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