Search a number
-
+
12086749 is a prime number
BaseRepresentation
bin101110000110…
…110111011101
3211202001220101
4232012313131
511043233444
61111021101
7204510223
oct56066735
924661811
1012086749
116905a54
12406a791
13267262c
141868b13
1510db3d4
hexb86ddd

12086749 has 2 divisors, whose sum is σ = 12086750. Its totient is φ = 12086748.

The previous prime is 12086747. The next prime is 12086761. The reversal of 12086749 is 94768021.

12086749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7739524 + 4347225 = 2782^2 + 2085^2 .

It is a cyclic number.

It is not a de Polignac number, because 12086749 - 21 = 12086747 is a prime.

Together with 12086747, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12086747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6043374 + 6043375.

It is an arithmetic number, because the mean of its divisors is an integer number (6043375).

Almost surely, 212086749 is an apocalyptic number.

It is an amenable number.

12086749 is a deficient number, since it is larger than the sum of its proper divisors (1).

12086749 is an equidigital number, since it uses as much as digits as its factorization.

12086749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 12086749 is about 3476.6002070989. The cubic root of 12086749 is about 229.4932067484.

The spelling of 12086749 in words is "twelve million, eighty-six thousand, seven hundred forty-nine".