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12671226 = 232703957
BaseRepresentation
bin110000010101…
…100011111010
3212211202122200
4300111203322
511220434401
61131331030
7212463231
oct60254372
925752580
1012671226
117175097
1242b0a76
132818689
14197bb18
1511a4686
hexc158fa

12671226 has 12 divisors (see below), whose sum is σ = 27454362. Its totient is φ = 4223736.

The previous prime is 12671221. The next prime is 12671249. The reversal of 12671226 is 62217621.

12671226 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6426225 + 6245001 = 2535^2 + 2499^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12671226.

It is not an unprimeable number, because it can be changed into a prime (12671221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 351961 + ... + 351996.

Almost surely, 212671226 is an apocalyptic number.

12671226 is an abundant number, since it is smaller than the sum of its proper divisors (14783136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12671226 is a wasteful number, since it uses less digits than its factorization.

12671226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703965 (or 703962 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 12671226 is about 3559.6665574180. Note that the first 3 decimals coincide. The cubic root of 12671226 is about 233.1343205573.

Adding to 12671226 its reverse (62217621), we get a palindrome (74888847).

The spelling of 12671226 in words is "twelve million, six hundred seventy-one thousand, two hundred twenty-six".

Divisors: 1 2 3 6 9 18 703957 1407914 2111871 4223742 6335613 12671226