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41945 = 58389
BaseRepresentation
bin1010001111011001
32010112112
422033121
52320240
6522105
7233201
oct121731
963475
1041945
1129572
1220335
1316127
1411401
15c665
hexa3d9

41945 has 4 divisors (see below), whose sum is σ = 50340. Its totient is φ = 33552.

The previous prime is 41941. The next prime is 41947. The reversal of 41945 is 54914.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54914 = 227457.

It can be written as a sum of positive squares in 2 ways, for example, as 26569 + 15376 = 163^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 41945 - 22 = 41941 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 41945.

It is not an unprimeable number, because it can be changed into a prime (41941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4190 + ... + 4199.

It is an arithmetic number, because the mean of its divisors is an integer number (12585).

241945 is an apocalyptic number.

It is an amenable number.

41945 is a deficient number, since it is larger than the sum of its proper divisors (8395).

41945 is an equidigital number, since it uses as much as digits as its factorization.

41945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8394.

The product of its digits is 720, while the sum is 23.

The square root of 41945 is about 204.8047851003. The cubic root of 41945 is about 34.7450866887.

It can be divided in two parts, 419 and 45, that added together give a palindrome (464).

The spelling of 41945 in words is "forty-one thousand, nine hundred forty-five".

Divisors: 1 5 8389 41945