Base | Representation |
---|---|
bin | 110000011110… |
… | …100101111111 |
3 | 212220122101221 |
4 | 300132211333 |
5 | 11223130343 |
6 | 1132214211 |
7 | 213006133 |
oct | 60364577 |
9 | 25818357 |
10 | 12708223 |
11 | 719a970 |
12 | 430a367 |
13 | 282c478 |
14 | 198b3c3 |
15 | 11b05ed |
hex | c1e97f |
12708223 has 4 divisors (see below), whose sum is σ = 13863528. Its totient is φ = 11552920.
The previous prime is 12708217. The next prime is 12708229. The reversal of 12708223 is 32280721.
It is a semiprime because it is the product of two primes.
It is an interprime number because it is at equal distance from previous prime (12708217) and next prime (12708229).
It is a cyclic number.
It is not a de Polignac number, because 12708223 - 213 = 12700031 is a prime.
It is a super-2 number, since 2×127082232 = 322997863635458, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12708229) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577636 + ... + 577657.
It is an arithmetic number, because the mean of its divisors is an integer number (3465882).
Almost surely, 212708223 is an apocalyptic number.
12708223 is a deficient number, since it is larger than the sum of its proper divisors (1155305).
12708223 is a wasteful number, since it uses less digits than its factorization.
12708223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1155304.
The product of its (nonzero) digits is 1344, while the sum is 25.
The square root of 12708223 is about 3564.8594642706. The cubic root of 12708223 is about 233.3609992139.
Adding to 12708223 its reverse (32280721), we get a palindrome (44988944).
The spelling of 12708223 in words is "twelve million, seven hundred eight thousand, two hundred twenty-three".
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