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12999941 is a prime number
BaseRepresentation
bin110001100101…
…110100000101
3220110110120022
4301211310011
511311444231
61142344525
7215332463
oct61456405
926413508
1012999941
11737a059
12442b145
132902196
141a25833
15121bc7b
hexc65d05

12999941 has 2 divisors, whose sum is σ = 12999942. Its totient is φ = 12999940.

The previous prime is 12999937. The next prime is 12999947. The reversal of 12999941 is 14999921.

12999941 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., 6522916 + 6477025 = 2554^2 + 2545^2 .

It is an emirp because it is prime and its reverse (14999921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12999941 - 22 = 12999937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12999892 and 12999901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12999947) 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 as a sum of consecutive naturals, namely, 6499970 + 6499971.

It is an arithmetic number, because the mean of its divisors is an integer number (6499971).

Almost surely, 212999941 is an apocalyptic number.

It is an amenable number.

12999941 is a deficient number, since it is larger than the sum of its proper divisors (1).

12999941 is an equidigital number, since it uses as much as digits as its factorization.

12999941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 44.

The square root of 12999941 is about 3605.5430936268. The cubic root of 12999941 is about 235.1331130568.

The spelling of 12999941 in words is "twelve million, nine hundred ninety-nine thousand, nine hundred forty-one".