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12768037 = 17751061
BaseRepresentation
bin110000101101…
…001100100101
3220000200110021
4300231030211
511232034122
61133355141
7213345412
oct60551445
926020407
1012768037
1172308a7
124338ab1
132850769
1419a5109
1511c31c7
hexc2d325

12768037 has 4 divisors (see below), whose sum is σ = 13519116. Its totient is φ = 12016960.

The previous prime is 12768031. The next prime is 12768047. The reversal of 12768037 is 73086721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10439361 + 2328676 = 3231^2 + 1526^2 .

It is not a de Polignac number, because 12768037 - 215 = 12735269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12767993 and 12768011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12768031) 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, 375514 + ... + 375547.

It is an arithmetic number, because the mean of its divisors is an integer number (3379779).

Almost surely, 212768037 is an apocalyptic number.

12768037 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12768037 is a deficient number, since it is larger than the sum of its proper divisors (751079).

12768037 is an equidigital number, since it uses as much as digits as its factorization.

12768037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751078.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 12768037 is about 3573.2390068396. The cubic root of 12768037 is about 233.7265476390.

The spelling of 12768037 in words is "twelve million, seven hundred sixty-eight thousand, thirty-seven".

Divisors: 1 17 751061 12768037