Base | Representation |
---|---|
bin | 110000001110… |
… | …001111100111 |
3 | 212210020112122 |
4 | 300032033213 |
5 | 11214010010 |
6 | 1130540155 |
7 | 212306654 |
oct | 60161747 |
9 | 25706478 |
10 | 12641255 |
11 | 7154620 |
12 | 429765b |
13 | 2807b43 |
14 | 1970c2b |
15 | 119a855 |
hex | c0e3e7 |
12641255 has 8 divisors (see below), whose sum is σ = 16548624. Its totient is φ = 9193600.
The previous prime is 12641249. The next prime is 12641257. The reversal of 12641255 is 55214621.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12641255 - 222 = 8446951 is a prime.
It is a Duffinian number.
It is a zygodrome in base 2.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12641257) 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 7 ways as a sum of consecutive naturals, for example, 114866 + ... + 114975.
It is an arithmetic number, because the mean of its divisors is an integer number (2068578).
Almost surely, 212641255 is an apocalyptic number.
12641255 is a deficient number, since it is larger than the sum of its proper divisors (3907369).
12641255 is a wasteful number, since it uses less digits than its factorization.
12641255 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 229857.
The product of its digits is 2400, while the sum is 26.
The square root of 12641255 is about 3555.4542607099. The cubic root of 12641255 is about 232.9503661154.
Adding to 12641255 its reverse (55214621), we get a palindrome (67855876).
The spelling of 12641255 in words is "twelve million, six hundred forty-one thousand, two hundred fifty-five".
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