Base | Representation |
---|---|
bin | 101110010001… |
… | …101100010101 |
3 | 211211022201202 |
4 | 232101230111 |
5 | 11101143333 |
6 | 1112002245 |
7 | 205053422 |
oct | 56215425 |
9 | 24738652 |
10 | 12131093 |
11 | 69362a7 |
12 | 4090385 |
13 | 2689880 |
14 | 187ad49 |
15 | 10e95e8 |
hex | b91b15 |
12131093 has 8 divisors (see below), whose sum is σ = 13116600. Its totient is φ = 11153088.
The previous prime is 12131089. The next prime is 12131099. The reversal of 12131093 is 39013121.
12131093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 1620529 + 10510564 = 1273^2 + 3242^2 .
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 12131093 - 22 = 12131089 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12131099) 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, 1763 + ... + 5231.
It is an arithmetic number, because the mean of its divisors is an integer number (1639575).
Almost surely, 212131093 is an apocalyptic number.
12131093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
It is an amenable number.
12131093 is a deficient number, since it is larger than the sum of its proper divisors (985507).
12131093 is a wasteful number, since it uses less digits than its factorization.
12131093 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3751.
The product of its (nonzero) digits is 162, while the sum is 20.
The square root of 12131093 is about 3482.9718632226. The cubic root of 12131093 is about 229.7735199704.
The spelling of 12131093 in words is "twelve million, one hundred thirty-one thousand, ninety-three".
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