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12936873 = 34312291
BaseRepresentation
bin110001010110…
…011010101001
3220100021001110
4301112122221
511302434443
61141140533
7214650555
oct61263251
926307043
1012936873
117336734
1243ba749
1328ac571
141a0a865
151208233
hexc566a9

12936873 has 4 divisors (see below), whose sum is σ = 17249168. Its totient is φ = 8624580.

The previous prime is 12936857. The next prime is 12936877. The reversal of 12936873 is 37863921.

12936873 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37863921 = 312621307.

It is not a de Polignac number, because 12936873 - 24 = 12936857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12936877) 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, 2156143 + ... + 2156148.

It is an arithmetic number, because the mean of its divisors is an integer number (4312292).

Almost surely, 212936873 is an apocalyptic number.

It is an amenable number.

12936873 is a deficient number, since it is larger than the sum of its proper divisors (4312295).

12936873 is an equidigital number, since it uses as much as digits as its factorization.

12936873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312294.

The product of its digits is 54432, while the sum is 39.

The square root of 12936873 is about 3596.7864824034. The cubic root of 12936873 is about 234.7522543763.

It can be divided in two parts, 12936 and 873, that multiplied together give a triangular number (11293128 = T4752).

The spelling of 12936873 in words is "twelve million, nine hundred thirty-six thousand, eight hundred seventy-three".

Divisors: 1 3 4312291 12936873