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12948238 = 26474119
BaseRepresentation
bin110001011001…
…001100001110
3220100211122101
4301121030032
511303320423
61141305314
7215025652
oct61311416
926324571
1012948238
117344226
12440523a
1328b47a4
141a10a62
15120b7ad
hexc5930e

12948238 has 4 divisors (see below), whose sum is σ = 19422360. Its totient is φ = 6474118.

The previous prime is 12948227. The next prime is 12948269. The reversal of 12948238 is 83284921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83284921 = 174899113.

It is a junction number, because it is equal to n+sod(n) for n = 12948197 and 12948206.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3237058 + ... + 3237061.

It is an arithmetic number, because the mean of its divisors is an integer number (4855590).

Almost surely, 212948238 is an apocalyptic number.

12948238 is a deficient number, since it is larger than the sum of its proper divisors (6474122).

12948238 is an equidigital number, since it uses as much as digits as its factorization.

12948238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6474121.

The product of its digits is 27648, while the sum is 37.

The square root of 12948238 is about 3598.3660180699. The cubic root of 12948238 is about 234.8209772814.

The spelling of 12948238 in words is "twelve million, nine hundred forty-eight thousand, two hundred thirty-eight".

Divisors: 1 2 6474119 12948238