Base | Representation |
---|---|
bin | 11001101000100… |
… | …11000011011100 |
3 | 112222121222002220 |
4 | 30310103003130 |
5 | 420022123444 |
6 | 33200545340 |
7 | 5220530322 |
oct | 1464230334 |
9 | 488558086 |
10 | 215036124 |
11 | 100422906 |
12 | 60022250 |
13 | 35720214 |
14 | 207b7d12 |
15 | 13d29619 |
hex | cd130dc |
215036124 has 12 divisors (see below), whose sum is σ = 501750984. Its totient is φ = 71678704.
The previous prime is 215036123. The next prime is 215036141. The reversal of 215036124 is 421630512.
It is a tau number, because it is divible by the number of its divisors (12).
It is a junction number, because it is equal to n+sod(n) for n = 215036094 and 215036103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (215036123) 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 3 ways as a sum of consecutive naturals, for example, 8959827 + ... + 8959850.
It is an arithmetic number, because the mean of its divisors is an integer number (41812582).
Almost surely, 2215036124 is an apocalyptic number.
It is an amenable number.
215036124 is an abundant number, since it is smaller than the sum of its proper divisors (286714860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
215036124 is a wasteful number, since it uses less digits than its factorization.
215036124 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17919684 (or 17919682 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 24.
The square root of 215036124 is about 14664.1100650534. The cubic root of 215036124 is about 599.1061913937.
Adding to 215036124 its reverse (421630512), we get a palindrome (636666636).
The spelling of 215036124 in words is "two hundred fifteen million, thirty-six thousand, one hundred twenty-four".
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