Search a number
-
+
50783913 = 3217331921
BaseRepresentation
bin1100000110111…
…0011010101001
310112120002102200
43001232122221
5101000041123
65012250413
71154441025
oct301563251
9115502380
1050783913
1126736784
1215010a09
13a6a116b
146a5d385
1546d2143
hex306e6a9

50783913 has 12 divisors (see below), whose sum is σ = 77669748. Its totient is φ = 31864320.

The previous prime is 50783893. The next prime is 50783917. The reversal of 50783913 is 31938705.

50783913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 46131264 + 4652649 = 6792^2 + 2157^2 .

It is not a de Polignac number, because 50783913 - 25 = 50783881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50783917) 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 11 ways as a sum of consecutive naturals, for example, 165808 + ... + 166113.

It is an arithmetic number, because the mean of its divisors is an integer number (6472479).

Almost surely, 250783913 is an apocalyptic number.

It is an amenable number.

50783913 is a deficient number, since it is larger than the sum of its proper divisors (26885835).

50783913 is a wasteful number, since it uses less digits than its factorization.

50783913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331944 (or 331941 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 50783913 is about 7126.2832528605. The cubic root of 50783913 is about 370.3184815676.

The spelling of 50783913 in words is "fifty million, seven hundred eighty-three thousand, nine hundred thirteen".

Divisors: 1 3 9 17 51 153 331921 995763 2987289 5642657 16927971 50783913