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12223489 = 103311833
BaseRepresentation
bin101110101000…
…010000000001
3212000000110211
4232220100001
511112122424
61113554121
7205616665
oct56502001
925000424
1012223489
116999763
124115941
1326bc945
1418a28a5
151116b94
hexba8401

12223489 has 4 divisors (see below), whose sum is σ = 12236356. Its totient is φ = 12210624.

The previous prime is 12223483. The next prime is 12223501. The reversal of 12223489 is 98432221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11675889 + 547600 = 3417^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223489 - 25 = 12223457 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 12223489.

It is not an unprimeable number, because it can be changed into a prime (12223483) 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, 4884 + ... + 6949.

It is an arithmetic number, because the mean of its divisors is an integer number (3059089).

Almost surely, 212223489 is an apocalyptic number.

It is an amenable number.

12223489 is a deficient number, since it is larger than the sum of its proper divisors (12867).

12223489 is a wasteful number, since it uses less digits than its factorization.

12223489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12866.

The product of its digits is 6912, while the sum is 31.

The square root of 12223489 is about 3496.2106629893. The cubic root of 12223489 is about 230.3553988805.

The spelling of 12223489 in words is "twelve million, two hundred twenty-three thousand, four hundred eighty-nine".

Divisors: 1 1033 11833 12223489