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12497412 = 2231041451
BaseRepresentation
bin101111101011…
…001000000100
3212111221020010
4233223020010
511144404122
61123510220
7211140414
oct57531004
925457203
1012497412
117066544
124228370
132787525
141934644
15116ce0c
hexbeb204

12497412 has 12 divisors (see below), whose sum is σ = 29160656. Its totient is φ = 4165800.

The previous prime is 12497389. The next prime is 12497413. The reversal of 12497412 is 21479421.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12497412.

It is not an unprimeable number, because it can be changed into a prime (12497413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520714 + ... + 520737.

Almost surely, 212497412 is an apocalyptic number.

12497412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12497412 is an abundant number, since it is smaller than the sum of its proper divisors (16663244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12497412 is a wasteful number, since it uses less digits than its factorization.

12497412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041458 (or 1041456 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 12497412 is about 3535.1678885168. The cubic root of 12497412 is about 232.0634239993.

Subtracting 12497412 from its reverse (21479421), we obtain a square (8982009 = 29972).

The spelling of 12497412 in words is "twelve million, four hundred ninety-seven thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 1041451 2082902 3124353 4165804 6248706 12497412