Base | Representation |
---|---|
bin | 110001000010… |
… | …001101110011 |
3 | 220012001112221 |
4 | 301002031303 |
5 | 11242313011 |
6 | 1135301511 |
7 | 214154413 |
oct | 61021563 |
9 | 26161487 |
10 | 12854131 |
11 | 728a554 |
12 | 437a897 |
13 | 28809c4 |
14 | 19c8643 |
15 | 11dd971 |
hex | c42373 |
12854131 has 2 divisors, whose sum is σ = 12854132. Its totient is φ = 12854130.
The previous prime is 12854129. The next prime is 12854141. The reversal of 12854131 is 13145821.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12854131 - 21 = 12854129 is a prime.
It is a super-2 number, since 2×128541312 = 330457367530322, which contains 22 as substring.
Together with 12854129, it forms a pair of twin primes.
It is equal to p840409 and since 12854131 and 840409 have the same sum of digits, it is a Honaker prime.
It is a junction number, because it is equal to n+sod(n) for n = 12854096 and 12854105.
It is not a weakly prime, because it can be changed into another prime (12854141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6427065 + 6427066.
It is an arithmetic number, because the mean of its divisors is an integer number (6427066).
Almost surely, 212854131 is an apocalyptic number.
12854131 is a deficient number, since it is larger than the sum of its proper divisors (1).
12854131 is an equidigital number, since it uses as much as digits as its factorization.
12854131 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 960, while the sum is 25.
The square root of 12854131 is about 3585.2658199916. The cubic root of 12854131 is about 234.2507053189.
Adding to 12854131 its reverse (13145821), we get a palindrome (25999952).
The spelling of 12854131 in words is "twelve million, eight hundred fifty-four thousand, one hundred thirty-one".
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