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12836939 = 17217459
BaseRepresentation
bin110000111110…
…000001001011
3220011011222012
4300332001023
511241240224
61135050135
7214053323
oct60760113
926134865
1012836939
117278645
12437094b
132875c2b
1419c2283
1511d880e
hexc3e04b

12836939 has 4 divisors (see below), whose sum is σ = 12846120. Its totient is φ = 12827760.

The previous prime is 12836933. The next prime is 12836953. The reversal of 12836939 is 93963821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12836939 - 212 = 12832843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12836896 and 12836905.

It is not an unprimeable number, because it can be changed into a prime (12836933) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2009 + ... + 5450.

It is an arithmetic number, because the mean of its divisors is an integer number (3211530).

Almost surely, 212836939 is an apocalyptic number.

12836939 is a deficient number, since it is larger than the sum of its proper divisors (9181).

12836939 is an equidigital number, since it uses as much as digits as its factorization.

12836939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9180.

The product of its digits is 69984, while the sum is 41.

The square root of 12836939 is about 3582.8674270757. The cubic root of 12836939 is about 234.1462243834.

The spelling of 12836939 in words is "twelve million, eight hundred thirty-six thousand, nine hundred thirty-nine".

Divisors: 1 1721 7459 12836939