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12756941 = 53313769
BaseRepresentation
bin110000101010…
…011111001101
3220000010020022
4300222133031
511231210231
61133231525
7213301151
oct60523715
926003208
1012756941
11722352a
1243325a5
1328486b2
1419a1061
1511bec7b
hexc2a7cd

12756941 has 8 divisors (see below), whose sum is σ = 13056120. Its totient is φ = 12460032.

The previous prime is 12756937. The next prime is 12756943. The reversal of 12756941 is 14965721.

It can be written as a sum of positive squares in 4 ways, for example, as 126025 + 12630916 = 355^2 + 3554^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12756941 - 22 = 12756937 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12756943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16205 + ... + 16973.

It is an arithmetic number, because the mean of its divisors is an integer number (1632015).

Almost surely, 212756941 is an apocalyptic number.

It is an amenable number.

12756941 is a deficient number, since it is larger than the sum of its proper divisors (299179).

12756941 is an equidigital number, since it uses as much as digits as its factorization.

12756941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135.

The product of its digits is 15120, while the sum is 35.

The square root of 12756941 is about 3571.6860164354. The cubic root of 12756941 is about 233.6588217125.

The spelling of 12756941 in words is "twelve million, seven hundred fifty-six thousand, nine hundred forty-one".

Divisors: 1 53 313 769 16589 40757 240697 12756941