Base | Representation |
---|---|
bin | 101110001100… |
… | …000011110011 |
3 | 211210011002011 |
4 | 232030003303 |
5 | 11044424034 |
6 | 1111303351 |
7 | 204626230 |
oct | 56140363 |
9 | 24704064 |
10 | 12108019 |
11 | 691aa30 |
12 | 407ab57 |
13 | 267c211 |
14 | 1872787 |
15 | 10e2864 |
hex | b8c0f3 |
12108019 has 8 divisors (see below), whose sum is σ = 15095808. Its totient is φ = 9434760.
The previous prime is 12108017. The next prime is 12108037. The reversal of 12108019 is 91080121.
12108019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 12108019 - 21 = 12108017 is a prime.
It is a super-2 number, since 2×121080192 = 293208248208722, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12108017) 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, 78547 + ... + 78700.
It is an arithmetic number, because the mean of its divisors is an integer number (1886976).
Almost surely, 212108019 is an apocalyptic number.
12108019 is a deficient number, since it is larger than the sum of its proper divisors (2987789).
12108019 is a wasteful number, since it uses less digits than its factorization.
12108019 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 157265.
The product of its (nonzero) digits is 144, while the sum is 22.
The square root of 12108019 is about 3479.6578854824. The cubic root of 12108019 is about 229.6277469229.
It can be divided in two parts, 1210 and 8019, that added together give a palindrome (9229).
The spelling of 12108019 in words is "twelve million, one hundred eight thousand, nineteen".
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