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41005985 = 58201197
BaseRepresentation
bin1001110001101…
…1001110100001
32212011022122012
42130123032201
540444142420
64022522305
71005354656
oct234331641
985138565
1041005985
1121168449
1211896395
1386596c7
145635c2d
1538eedc5
hex271b3a1

41005985 has 4 divisors (see below), whose sum is σ = 49207188. Its totient is φ = 32804784.

The previous prime is 41005927. The next prime is 41005997. The reversal of 41005985 is 58950014.

41005985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58950014 = 229475007.

It can be written as a sum of positive squares in 2 ways, for example, as 31315216 + 9690769 = 5596^2 + 3113^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-41005985 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4100594 + ... + 4100603.

It is an arithmetic number, because the mean of its divisors is an integer number (12301797).

Almost surely, 241005985 is an apocalyptic number.

It is an amenable number.

41005985 is a deficient number, since it is larger than the sum of its proper divisors (8201203).

41005985 is an equidigital number, since it uses as much as digits as its factorization.

41005985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8201202.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 41005985 is about 6403.5915703611. The cubic root of 41005985 is about 344.8385017424.

Adding to 41005985 its reverse (58950014), we get a palindrome (99955999).

The spelling of 41005985 in words is "forty-one million, five thousand, nine hundred eighty-five".

Divisors: 1 5 8201197 41005985