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12948717 = 34316239
BaseRepresentation
bin110001011001…
…010011101101
3220100212022010
4301121103231
511303324332
61141311433
7215030235
oct61312355
926325263
1012948717
117344621
124405579
1328b4a82
141a10cc5
15120b9cc
hexc594ed

12948717 has 4 divisors (see below), whose sum is σ = 17264960. Its totient is φ = 8632476.

The previous prime is 12948707. The next prime is 12948737. The reversal of 12948717 is 71784921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12948717 - 211 = 12946669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12948707) 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, 2158117 + ... + 2158122.

It is an arithmetic number, because the mean of its divisors is an integer number (4316240).

Almost surely, 212948717 is an apocalyptic number.

It is an amenable number.

12948717 is a deficient number, since it is larger than the sum of its proper divisors (4316243).

12948717 is an equidigital number, since it uses as much as digits as its factorization.

12948717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316242.

The product of its digits is 28224, while the sum is 39.

The square root of 12948717 is about 3598.4325754417. The cubic root of 12948717 is about 234.8238728584.

It can be divided in two parts, 1294 and 8717, that added together give a triangular number (10011 = T141).

The spelling of 12948717 in words is "twelve million, nine hundred forty-eight thousand, seven hundred seventeen".

Divisors: 1 3 4316239 12948717