Base | Representation |
---|---|
bin | 101101111110… |
… | …110110101011 |
3 | 211200101212220 |
4 | 231332312223 |
5 | 11041211211 |
6 | 1110205123 |
7 | 204312441 |
oct | 55766653 |
9 | 24611786 |
10 | 12053931 |
11 | 689332a |
12 | 40537a3 |
13 | 2660706 |
14 | 185ab91 |
15 | 10d1806 |
hex | b7edab |
12053931 has 4 divisors (see below), whose sum is σ = 16071912. Its totient is φ = 8035952.
The previous prime is 12053917. The next prime is 12053933. The reversal of 12053931 is 13935021.
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: 13935021 = 3 ⋅4645007.
It is a cyclic number.
It is not a de Polignac number, because 12053931 - 210 = 12052907 is a prime.
It is a super-2 number, since 2×120539312 = 290594505105522, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (12053933) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2008986 + ... + 2008991.
It is an arithmetic number, because the mean of its divisors is an integer number (4017978).
Almost surely, 212053931 is an apocalyptic number.
12053931 is a deficient number, since it is larger than the sum of its proper divisors (4017981).
12053931 is an equidigital number, since it uses as much as digits as its factorization.
12053931 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4017980.
The product of its (nonzero) digits is 810, while the sum is 24.
The square root of 12053931 is about 3471.8771579651. The cubic root of 12053931 is about 229.2853114495.
Adding to 12053931 its reverse (13935021), we get a palindrome (25988952).
The spelling of 12053931 in words is "twelve million, fifty-three thousand, nine hundred thirty-one".
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