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12271423 = 412291307
BaseRepresentation
bin101110110011…
…111100111111
3212002110020011
4232303330333
511120141143
61115004051
7206206513
oct56637477
925073204
1012271423
116a2177a
124139627
1327086c8
1418b6143
151125e9d
hexbb3f3f

12271423 has 8 divisors (see below), whose sum is σ = 12635280. Its totient is φ = 11910720.

The previous prime is 12271421. The next prime is 12271429. The reversal of 12271423 is 32417221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12271423 - 21 = 12271421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12271394 and 12271403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12271421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8736 + ... + 10042.

It is an arithmetic number, because the mean of its divisors is an integer number (1579410).

Almost surely, 212271423 is an apocalyptic number.

12271423 is a deficient number, since it is larger than the sum of its proper divisors (363857).

12271423 is a wasteful number, since it uses less digits than its factorization.

12271423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1577.

The product of its digits is 672, while the sum is 22.

The square root of 12271423 is about 3503.0590917083. The cubic root of 12271423 is about 230.6561164479.

Adding to 12271423 its reverse (32417221), we get a palindrome (44688644).

The spelling of 12271423 in words is "twelve million, two hundred seventy-one thousand, four hundred twenty-three".

Divisors: 1 41 229 1307 9389 53587 299303 12271423