Base | Representation |
---|---|
bin | 10110101101000101… |
… | …10000001100110011 |
3 | 1011110111110002222021 |
4 | 23112202300030303 |
5 | 144430434303024 |
6 | 5333312252311 |
7 | 611030633233 |
oct | 132642601463 |
9 | 34414402867 |
10 | 12189369139 |
11 | 51956434a2 |
12 | 2442241097 |
13 | 11c346907c |
14 | 838c33cc3 |
15 | 4b51c9de4 |
hex | 2d68b0333 |
12189369139 has 4 divisors (see below), whose sum is σ = 12194402256. Its totient is φ = 12184336024.
The previous prime is 12189369097. The next prime is 12189369151. The reversal of 12189369139 is 93196398121.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93196398121 = 41 ⋅2273082881.
It is a cyclic number.
It is not a de Polignac number, because 12189369139 - 27 = 12189369011 is a prime.
It is a super-3 number, since 3×121893691393 (a number of 31 digits) contains 333 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12189361139) 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, 2512924 + ... + 2517769.
It is an arithmetic number, because the mean of its divisors is an integer number (3048600564).
Almost surely, 212189369139 is an apocalyptic number.
12189369139 is a deficient number, since it is larger than the sum of its proper divisors (5033117).
12189369139 is an equidigital number, since it uses as much as digits as its factorization.
12189369139 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5033116.
The product of its digits is 629856, while the sum is 52.
The spelling of 12189369139 in words is "twelve billion, one hundred eighty-nine million, three hundred sixty-nine thousand, one hundred thirty-nine".
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