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12995401 = 41316961
BaseRepresentation
bin110001100100…
…101101001001
3220110020100011
4301210231021
511311323101
61142311521
7215313316
oct61445511
926406304
1012995401
117376701
1244285a1
1329000b3
141a23d0d
15121a751
hexc64b49

12995401 has 4 divisors (see below), whose sum is σ = 13312404. Its totient is φ = 12678400.

The previous prime is 12995377. The next prime is 12995413. The reversal of 12995401 is 10459921.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4579600 + 8415801 = 2140^2 + 2901^2 .

It is a cyclic number.

It is not a de Polignac number, because 12995401 - 25 = 12995369 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12995431) 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, 158440 + ... + 158521.

It is an arithmetic number, because the mean of its divisors is an integer number (3328101).

Almost surely, 212995401 is an apocalyptic number.

It is an amenable number.

12995401 is a deficient number, since it is larger than the sum of its proper divisors (317003).

12995401 is an equidigital number, since it uses as much as digits as its factorization.

12995401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317002.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 12995401 is about 3604.9134524979. The cubic root of 12995401 is about 235.1057378396.

The spelling of 12995401 in words is "twelve million, nine hundred ninety-five thousand, four hundred one".

Divisors: 1 41 316961 12995401