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41741981 is a prime number
BaseRepresentation
bin1001111100111…
…0111010011101
32220112201020022
42133032322131
541141220411
64050401525
71014541511
oct237167235
986481208
1041741981
1121620406
1211b902a5
1388566c8
145788141
1539e7edb
hex27cee9d

41741981 has 2 divisors, whose sum is σ = 41741982. Its totient is φ = 41741980.

The previous prime is 41741951. The next prime is 41741983. The reversal of 41741981 is 18914714.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26265625 + 15476356 = 5125^2 + 3934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-41741981 is a prime.

It is a super-2 number, since 2×417419812 = 3484785955608722, which contains 22 as substring.

Together with 41741983, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p2532959 and since 41741981 and 2532959 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41741983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20870990 + 20870991.

It is an arithmetic number, because the mean of its divisors is an integer number (20870991).

Almost surely, 241741981 is an apocalyptic number.

It is an amenable number.

41741981 is a deficient number, since it is larger than the sum of its proper divisors (1).

41741981 is an equidigital number, since it uses as much as digits as its factorization.

41741981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 35.

The square root of 41741981 is about 6460.8034330105. The cubic root of 41741981 is about 346.8893916167.

The spelling of 41741981 in words is "forty-one million, seven hundred forty-one thousand, nine hundred eighty-one".