Base | Representation |
---|---|
bin | 101101110001… |
… | …110110101110 |
3 | 211120200211212 |
4 | 231301312232 |
5 | 11033010221 |
6 | 1105114422 |
7 | 204001265 |
oct | 55616656 |
9 | 24520755 |
10 | 12000686 |
11 | 6857325 |
12 | 4028a12 |
13 | 26423c9 |
14 | 18455dc |
15 | 10c0b5b |
hex | b71dae |
12000686 has 4 divisors (see below), whose sum is σ = 18001032. Its totient is φ = 6000342.
The previous prime is 12000683. The next prime is 12000731. The reversal of 12000686 is 68600021.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68600021 = 7 ⋅9800003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12000683) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3000170 + ... + 3000173.
It is an arithmetic number, because the mean of its divisors is an integer number (4500258).
Almost surely, 212000686 is an apocalyptic number.
12000686 is a deficient number, since it is larger than the sum of its proper divisors (6000346).
12000686 is an equidigital number, since it uses as much as digits as its factorization.
12000686 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6000345.
The product of its (nonzero) digits is 576, while the sum is 23.
The square root of 12000686 is about 3464.2006292939. The cubic root of 12000686 is about 228.9472110607.
The spelling of 12000686 in words is "twelve million, six hundred eighty-six", and thus it is an aban number.
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