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20240041 = 71285071
BaseRepresentation
bin100110100110…
…1011010101001
31102002022010011
41031031122221
520140140131
62001451521
7334015603
oct115153251
942068104
1020240041
1110474708
126940ba1
134268773
14298c173
151b9c0b1
hex134d6a9

20240041 has 4 divisors (see below), whose sum is σ = 20525184. Its totient is φ = 19954900.

The previous prime is 20240021. The next prime is 20240071. The reversal of 20240041 is 14004202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14004202 = 27002101.

It is a cyclic number.

It is not a de Polignac number, because 20240041 - 27 = 20239913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20240021) 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 3 ways as a sum of consecutive naturals, for example, 142465 + ... + 142606.

It is an arithmetic number, because the mean of its divisors is an integer number (5131296).

Almost surely, 220240041 is an apocalyptic number.

It is an amenable number.

20240041 is a deficient number, since it is larger than the sum of its proper divisors (285143).

20240041 is an equidigital number, since it uses as much as digits as its factorization.

20240041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285142.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 20240041 is about 4498.8933083593. The cubic root of 20240041 is about 272.5233983780.

Adding to 20240041 its reverse (14004202), we get a palindrome (34244243).

The spelling of 20240041 in words is "twenty million, two hundred forty thousand, forty-one".

Divisors: 1 71 285071 20240041