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12445316 = 2213239333
BaseRepresentation
bin101111011110…
…011010000100
3212102021202122
4233132122010
511141222231
61122425112
7210532502
oct57363204
925367678
1012445316
117030394
124202198
1327698c0
14191d672
15115c77b
hexbde684

12445316 has 12 divisors (see below), whose sum is σ = 23454732. Its totient is φ = 5743968.

The previous prime is 12445297. The next prime is 12445319. The reversal of 12445316 is 61354421.

It can be written as a sum of positive squares in 2 ways, for example, as 4605316 + 7840000 = 2146^2 + 2800^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (12445319) 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 3 ways as a sum of consecutive naturals, for example, 119615 + ... + 119718.

It is an arithmetic number, because the mean of its divisors is an integer number (1954561).

Almost surely, 212445316 is an apocalyptic number.

It is an amenable number.

12445316 is a deficient number, since it is larger than the sum of its proper divisors (11009416).

12445316 is a wasteful number, since it uses less digits than its factorization.

12445316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239350 (or 239348 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 12445316 is about 3527.7919439786. The cubic root of 12445316 is about 231.7405194441.

Adding to 12445316 its reverse (61354421), we get a palindrome (73799737).

The spelling of 12445316 in words is "twelve million, four hundred forty-five thousand, three hundred sixteen".

Divisors: 1 2 4 13 26 52 239333 478666 957332 3111329 6222658 12445316