Search a number
-
+
12286469 = 13272701
BaseRepresentation
bin101110110111…
…101000000101
3212010012212102
4232313220011
511121131334
61115201445
7206301416
oct56675005
925105772
1012286469
116a32008
124146285
132712500
1418bb80d
15112a67e
hexbb7a05

12286469 has 6 divisors (see below), whose sum is σ = 13304466. Its totient is φ = 11341200.

The previous prime is 12286453. The next prime is 12286471. The reversal of 12286469 is 96468221.

It can be written as a sum of positive squares in 3 ways, for example, as 1444 + 12285025 = 38^2 + 3505^2 .

It is not a de Polignac number, because 12286469 - 24 = 12286453 is a prime.

It is a super-2 number, since 2×122864692 = 301914640975922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12286409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36182 + ... + 36519.

It is an arithmetic number, because the mean of its divisors is an integer number (2217411).

Almost surely, 212286469 is an apocalyptic number.

It is an amenable number.

12286469 is a deficient number, since it is larger than the sum of its proper divisors (1017997).

12286469 is an equidigital number, since it uses as much as digits as its factorization.

12286469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72727 (or 72714 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 12286469 is about 3505.2059853880. The cubic root of 12286469 is about 230.7503471528.

The spelling of 12286469 in words is "twelve million, two hundred eighty-six thousand, four hundred sixty-nine".

Divisors: 1 13 169 72701 945113 12286469