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20000413 = 28796947
BaseRepresentation
bin100110001001…
…0111010011101
31101122010102001
41030102322131
520110003123
61552402301
7332000146
oct114227235
941563361
1020000413
1110320674
126846391
1341b3684
142928acd
151b510ad
hex1312e9d

20000413 has 4 divisors (see below), whose sum is σ = 20010240. Its totient is φ = 19990588.

The previous prime is 20000389. The next prime is 20000429. The reversal of 20000413 is 31400002.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20000413 - 217 = 19869341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20000413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000443) 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, 595 + ... + 6352.

It is an arithmetic number, because the mean of its divisors is an integer number (5002560).

Almost surely, 220000413 is an apocalyptic number.

It is an amenable number.

20000413 is a deficient number, since it is larger than the sum of its proper divisors (9827).

20000413 is an equidigital number, since it uses as much as digits as its factorization.

20000413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9826.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20000413 is about 4472.1821295649. The cubic root of 20000413 is about 271.4436300708.

Adding to 20000413 its reverse (31400002), we get a palindrome (51400415).

The spelling of 20000413 in words is "twenty million, four hundred thirteen", and thus it is an aban number.

Divisors: 1 2879 6947 20000413