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20041293 = 36680431
BaseRepresentation
bin100110001110…
…0111001001101
31101201012111010
41030130321031
520112310133
61553315433
7332230266
oct114347115
941635433
1020041293
1110349358
126865b79
1341c916c
14293996d
151b5d263
hex131ce4d

20041293 has 4 divisors (see below), whose sum is σ = 26721728. Its totient is φ = 13360860.

The previous prime is 20041279. The next prime is 20041327. The reversal of 20041293 is 39214002.

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.

It is not a de Polignac number, because 20041293 - 28 = 20041037 is a prime.

It is a super-2 number, since 2×200412932 = 803306850223698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20041213) 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, 3340213 + ... + 3340218.

It is an arithmetic number, because the mean of its divisors is an integer number (6680432).

Almost surely, 220041293 is an apocalyptic number.

It is an amenable number.

20041293 is a deficient number, since it is larger than the sum of its proper divisors (6680435).

20041293 is an equidigital number, since it uses as much as digits as its factorization.

20041293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6680434.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 20041293 is about 4476.7502722399. The cubic root of 20041293 is about 271.6284439849.

Adding to 20041293 its reverse (39214002), we get a palindrome (59255295).

The spelling of 20041293 in words is "twenty million, forty-one thousand, two hundred ninety-three".

Divisors: 1 3 6680431 20041293