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12269497 = 19645763
BaseRepresentation
bin101110110011…
…011110111001
3212002100120211
4232303132321
511120110442
61114551121
7206201062
oct56633671
925070524
1012269497
116a20289
1241384a1
132707876
1418b5569
151125617
hexbb37b9

12269497 has 4 divisors (see below), whose sum is σ = 12915280. Its totient is φ = 11623716.

The previous prime is 12269489. The next prime is 12269501. The reversal of 12269497 is 79496221.

12269497 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12269497 - 23 = 12269489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12269417) 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, 322863 + ... + 322900.

It is an arithmetic number, because the mean of its divisors is an integer number (3228820).

Almost surely, 212269497 is an apocalyptic number.

It is an amenable number.

12269497 is a deficient number, since it is larger than the sum of its proper divisors (645783).

12269497 is an equidigital number, since it uses as much as digits as its factorization.

12269497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645782.

The product of its digits is 54432, while the sum is 40.

The square root of 12269497 is about 3502.7841783359. The cubic root of 12269497 is about 230.6440486564.

The spelling of 12269497 in words is "twelve million, two hundred sixty-nine thousand, four hundred ninety-seven".

Divisors: 1 19 645763 12269497