Base | Representation |
---|---|
bin | 101110000101… |
… | …110100001111 |
3 | 211201212000001 |
4 | 232011310033 |
5 | 11043114242 |
6 | 1110545131 |
7 | 204461536 |
oct | 56056417 |
9 | 24655001 |
10 | 12082447 |
11 | 69027a3 |
12 | 40681a7 |
13 | 26706a0 |
14 | 186731d |
15 | 10d9eb7 |
hex | b85d0f |
12082447 has 4 divisors (see below), whose sum is σ = 13011880. Its totient is φ = 11153016.
The previous prime is 12082403. The next prime is 12082451. The reversal of 12082447 is 74428021.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74428021 = 179 ⋅415799.
It is a cyclic number.
It is not a de Polignac number, because 12082447 - 27 = 12082319 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12082487) 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, 464697 + ... + 464722.
It is an arithmetic number, because the mean of its divisors is an integer number (3252970).
Almost surely, 212082447 is an apocalyptic number.
12082447 is a deficient number, since it is larger than the sum of its proper divisors (929433).
12082447 is an equidigital number, since it uses as much as digits as its factorization.
12082447 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 929432.
The product of its (nonzero) digits is 3584, while the sum is 28.
The square root of 12082447 is about 3475.9814441392. The cubic root of 12082447 is about 229.4659759099.
It can be divided in two parts, 1208 and 2447, that added together give a triangular number (3655 = T85).
The spelling of 12082447 in words is "twelve million, eighty-two thousand, four hundred forty-seven".
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