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12793238 = 26396619
BaseRepresentation
bin110000110011…
…010110010110
3220001222000122
4300303112112
511233340423
61134111542
7213512033
oct60632626
926058018
1012793238
117248827
12434b5b2
13285c083
1419b038a
1511ca8c8
hexc33596

12793238 has 4 divisors (see below), whose sum is σ = 19189860. Its totient is φ = 6396618.

The previous prime is 12793237. The next prime is 12793243. The reversal of 12793238 is 83239721.

12793238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83239721 = 491169531.

It is a junction number, because it is equal to n+sod(n) for n = 12793198 and 12793207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12793237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3198308 + ... + 3198311.

It is an arithmetic number, because the mean of its divisors is an integer number (4797465).

Almost surely, 212793238 is an apocalyptic number.

12793238 is a deficient number, since it is larger than the sum of its proper divisors (6396622).

12793238 is an equidigital number, since it uses as much as digits as its factorization.

12793238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6396621.

The product of its digits is 18144, while the sum is 35.

The square root of 12793238 is about 3576.7636209288. The cubic root of 12793238 is about 233.8802197013.

It can be divided in two parts, 12793 and 238, that added together give a palindrome (13031).

The spelling of 12793238 in words is "twelve million, seven hundred ninety-three thousand, two hundred thirty-eight".

Divisors: 1 2 6396619 12793238