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50820769 = 1712772341
BaseRepresentation
bin1100000111011…
…1011010100001
310112121221222201
43001313122201
5101002231034
65013133201
71154653336
oct301673241
9115557881
1050820769
112676143a
121502a201
13a6b4b7c
146a6c98d
1546dd014
hex30776a1

50820769 has 8 divisors (see below), whose sum is σ = 53875368. Its totient is φ = 47773440.

The previous prime is 50820751. The next prime is 50820793. The reversal of 50820769 is 96702805.

50820769 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 4 ways, for example, as 20976400 + 29844369 = 4580^2 + 5463^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50820769 - 27 = 50820641 is a prime.

It is a super-2 number, since 2×508207692 = 5165501123502722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50820709) 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 7 ways as a sum of consecutive naturals, for example, 20539 + ... + 22879.

It is an arithmetic number, because the mean of its divisors is an integer number (6734421).

Almost surely, 250820769 is an apocalyptic number.

It is an amenable number.

50820769 is a deficient number, since it is larger than the sum of its proper divisors (3054599).

50820769 is a wasteful number, since it uses less digits than its factorization.

50820769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 50820769 is about 7128.8687040792. The cubic root of 50820769 is about 370.4080450844.

The spelling of 50820769 in words is "fifty million, eight hundred twenty thousand, seven hundred sixty-nine".

Divisors: 1 17 1277 2341 21709 39797 2989457 50820769