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20000241 = 322222249
BaseRepresentation
bin100110001001…
…0110111110001
31101122010011200
41030102313301
520110001431
61552401413
7331666512
oct114226761
941563150
1020000241
1110320528
126846269
1341b3581
142928a09
151b50ee6
hex1312df1

20000241 has 6 divisors (see below), whose sum is σ = 28889250. Its totient is φ = 13333488.

The previous prime is 20000221. The next prime is 20000243. The reversal of 20000241 is 14200002.

It can be written as a sum of positive squares in only one way, i.e., 12047841 + 7952400 = 3471^2 + 2820^2 .

It is not a de Polignac number, because 20000241 - 29 = 19999729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2222249 = 20000241 / (2 + 0 + 0 + 0 + 0 + 2 + 4 + 1).

It is not an unprimeable number, because it can be changed into a prime (20000243) 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 5 ways as a sum of consecutive naturals, for example, 1111116 + ... + 1111133.

It is an arithmetic number, because the mean of its divisors is an integer number (4814875).

Almost surely, 220000241 is an apocalyptic number.

It is an amenable number.

20000241 is a deficient number, since it is larger than the sum of its proper divisors (8889009).

20000241 is a wasteful number, since it uses less digits than its factorization.

20000241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222255 (or 2222252 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 20000241 is about 4472.1628995375. The cubic root of 20000241 is about 271.4428519462.

Adding to 20000241 its reverse (14200002), we get a palindrome (34200243).

The spelling of 20000241 in words is "twenty million, two hundred forty-one", and thus it is an aban number.

Divisors: 1 3 9 2222249 6666747 20000241