Base | Representation |
---|---|
bin | 101110011011… |
… | …001010100101 |
3 | 211220021221210 |
4 | 232123022211 |
5 | 11103414033 |
6 | 1112502033 |
7 | 205304511 |
oct | 56331245 |
9 | 24807853 |
10 | 12169893 |
11 | 696246a |
12 | 40aa919 |
13 | 26a1428 |
14 | 188b141 |
15 | 1105d63 |
hex | b9b2a5 |
12169893 has 8 divisors (see below), whose sum is σ = 16257888. Its totient is φ = 8097584.
The previous prime is 12169891. The next prime is 12169933. The reversal of 12169893 is 39896121.
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 12169893 - 21 = 12169891 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12169891) 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 7 ways as a sum of consecutive naturals, for example, 1971 + ... + 5312.
It is an arithmetic number, because the mean of its divisors is an integer number (2032236).
Almost surely, 212169893 is an apocalyptic number.
It is an amenable number.
12169893 is a deficient number, since it is larger than the sum of its proper divisors (4087995).
12169893 is an equidigital number, since it uses as much as digits as its factorization.
12169893 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7843.
The product of its digits is 23328, while the sum is 39.
The square root of 12169893 is about 3488.5373725961. The cubic root of 12169893 is about 230.0182279189.
The spelling of 12169893 in words is "twelve million, one hundred sixty-nine thousand, eight hundred ninety-three".
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