Search a number
-
+
50809061 = 56390247
BaseRepresentation
bin1100000111010…
…0100011100101
310112121100221002
43001310203211
5101001342221
65013003045
71154604242
oct301644345
9115540832
1050809061
1126753666
1215023485
13a6ac744
146a685c9
1546d980b
hex30748e5

50809061 has 4 divisors (see below), whose sum is σ = 50899872. Its totient is φ = 50718252.

The previous prime is 50809051. The next prime is 50809069. The reversal of 50809061 is 16090805.

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: 16090805 = 53218161.

It is a cyclic number.

It is not a de Polignac number, because 50809061 - 26 = 50808997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50809069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44561 + ... + 45686.

It is an arithmetic number, because the mean of its divisors is an integer number (12724968).

Almost surely, 250809061 is an apocalyptic number.

It is an amenable number.

50809061 is a deficient number, since it is larger than the sum of its proper divisors (90811).

50809061 is an equidigital number, since it uses as much as digits as its factorization.

50809061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90810.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 50809061 is about 7128.0474886185. The cubic root of 50809061 is about 370.3795982470.

Adding to 50809061 its reverse (16090805), we get a palindrome (66899866).

It can be divided in two parts, 5080 and 9061, that added together give a palindrome (14141).

The spelling of 50809061 in words is "fifty million, eight hundred nine thousand, sixty-one".

Divisors: 1 563 90247 50809061