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12848641 = 13988357
BaseRepresentation
bin110001000000…
…111000000001
3220011210000121
4301000320001
511242124031
61135220241
7214132411
oct61007001
926153017
1012848641
117286413
124377681
13287b360
1419c6641
1511dc011
hexc40e01

12848641 has 4 divisors (see below), whose sum is σ = 13837012. Its totient is φ = 11860272.

The previous prime is 12848623. The next prime is 12848659. The reversal of 12848641 is 14684821.

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

It is an interprime number because it is at equal distance from previous prime (12848623) and next prime (12848659).

It can be written as a sum of positive squares in 2 ways, for example, as 4322241 + 8526400 = 2079^2 + 2920^2 .

It is a cyclic number.

It is not a de Polignac number, because 12848641 - 25 = 12848609 is a prime.

It is the 3585-th Hogben number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12848597 and 12848606.

It is not an unprimeable number, because it can be changed into a prime (12848681) by changing a digit.

It is a nontrivial repunit in base 3584.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494166 + ... + 494191.

It is an arithmetic number, because the mean of its divisors is an integer number (3459253).

Almost surely, 212848641 is an apocalyptic number.

It is an amenable number.

12848641 is a deficient number, since it is larger than the sum of its proper divisors (988371).

12848641 is an equidigital number, since it uses as much as digits as its factorization.

12848641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988370.

The product of its digits is 12288, while the sum is 34.

The square root of 12848641 is about 3584.5001046171. The cubic root of 12848641 is about 234.2173510739.

The spelling of 12848641 in words is "twelve million, eight hundred forty-eight thousand, six hundred forty-one".

Divisors: 1 13 988357 12848641