Base | Representation |
---|---|
bin | 10110101100001110… |
… | …11101010010110001 |
3 | 1011102222222120201001 |
4 | 23112013131102301 |
5 | 144422121320214 |
6 | 5332455042001 |
7 | 610613052223 |
oct | 132607352261 |
9 | 34388876631 |
10 | 12182213809 |
11 | 51915a65a7 |
12 | 243b970301 |
13 | 11c1b3224c |
14 | 837cd0413 |
15 | 4b4764c74 |
hex | 2d61dd4b1 |
12182213809 has 8 divisors (see below), whose sum is σ = 12580621568. Its totient is φ = 11784145680.
The previous prime is 12182213783. The next prime is 12182213861. The reversal of 12182213809 is 90831228121.
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 12182213809 - 233 = 3592279217 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12182213899) 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, 10962 + ... + 156475.
It is an arithmetic number, because the mean of its divisors is an integer number (1572577696).
Almost surely, 212182213809 is an apocalyptic number.
It is an amenable number.
12182213809 is a deficient number, since it is larger than the sum of its proper divisors (398407759).
12182213809 is a wasteful number, since it uses less digits than its factorization.
12182213809 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 169815.
The product of its (nonzero) digits is 13824, while the sum is 37.
The spelling of 12182213809 in words is "twelve billion, one hundred eighty-two million, two hundred thirteen thousand, eight hundred nine".
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