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13242667 = 43307969
BaseRepresentation
bin110010100001…
…000100101011
3220220210112011
4302201010223
511342231132
61151500351
7220363234
oct62410453
926823464
1013242667
117525459
1245276b7
1329887c9
141a8a08b
151268b47
hexca112b

13242667 has 4 divisors (see below), whose sum is σ = 13550680. Its totient is φ = 12934656.

The previous prime is 13242661. The next prime is 13242679. The reversal of 13242667 is 76624231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13242667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13242661) 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, 153942 + ... + 154027.

It is an arithmetic number, because the mean of its divisors is an integer number (3387670).

Almost surely, 213242667 is an apocalyptic number.

13242667 is a deficient number, since it is larger than the sum of its proper divisors (308013).

13242667 is an equidigital number, since it uses as much as digits as its factorization.

13242667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308012.

The product of its digits is 12096, while the sum is 31.

The square root of 13242667 is about 3639.0475402226. The cubic root of 13242667 is about 236.5875132598.

Adding to 13242667 its reverse (76624231), we get a palindrome (89866898).

The spelling of 13242667 in words is "thirteen million, two hundred forty-two thousand, six hundred sixty-seven".

Divisors: 1 43 307969 13242667