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12790023 = 34263341
BaseRepresentation
bin110000110010…
…100100000111
3220001210121120
4300302210013
511233240043
61134045023
7213466461
oct60624407
926053546
1012790023
117246374
124349773
13285a77c
1419ad131
1511c9983
hexc32907

12790023 has 4 divisors (see below), whose sum is σ = 17053368. Its totient is φ = 8526680.

The previous prime is 12790009. The next prime is 12790027. The reversal of 12790023 is 32009721.

12790023 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 12790023 - 24 = 12790007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12789975 and 12790002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12790027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2131668 + ... + 2131673.

It is an arithmetic number, because the mean of its divisors is an integer number (4263342).

Almost surely, 212790023 is an apocalyptic number.

12790023 is a deficient number, since it is larger than the sum of its proper divisors (4263345).

12790023 is an equidigital number, since it uses as much as digits as its factorization.

12790023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263344.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 12790023 is about 3576.3141640521. The cubic root of 12790023 is about 233.8606263322.

Adding to 12790023 its reverse (32009721), we get a palindrome (44799744).

The spelling of 12790023 in words is "twelve million, seven hundred ninety thousand, twenty-three".

Divisors: 1 3 4263341 12790023