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12224469 = 34074823
BaseRepresentation
bin101110101000…
…011111010101
3212000001211010
4232220133111
511112140334
61114002433
7205622565
oct56503725
925001733
1012224469
11699a474
124116419
1326c021a
1418a2da5
1511170e9
hexba87d5

12224469 has 4 divisors (see below), whose sum is σ = 16299296. Its totient is φ = 8149644.

The previous prime is 12224413. The next prime is 12224473. The reversal of 12224469 is 96442221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96442221 = 332147407.

It is not a de Polignac number, because 12224469 - 28 = 12224213 is a prime.

It is a super-2 number, since 2×122244692 = 298875284663922, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224669) 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, 2037409 + ... + 2037414.

It is an arithmetic number, because the mean of its divisors is an integer number (4074824).

Almost surely, 212224469 is an apocalyptic number.

It is an amenable number.

12224469 is a deficient number, since it is larger than the sum of its proper divisors (4074827).

12224469 is an equidigital number, since it uses as much as digits as its factorization.

12224469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074826.

The product of its digits is 6912, while the sum is 30.

The square root of 12224469 is about 3496.3508119180. The cubic root of 12224469 is about 230.3615548495.

The spelling of 12224469 in words is "twelve million, two hundred twenty-four thousand, four hundred sixty-nine".

Divisors: 1 3 4074823 12224469