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50801881 = 1329134753
BaseRepresentation
bin1100000111001…
…0110011011001
310112121000002011
43001302303121
5101001130011
65012505521
71154544304
oct301626331
9115530064
1050801881
1126749229
121501b2a1
13a6a93b0
146a65b3b
1546d7621
hex3072cd9

50801881 has 8 divisors (see below), whose sum is σ = 56596680. Its totient is φ = 45276672.

The previous prime is 50801873. The next prime is 50801921. The reversal of 50801881 is 18810805.

It is a happy number.

50801881 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 15280281 + 35521600 = 3909^2 + 5960^2 .

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 50801881 - 23 = 50801873 is a prime.

It is a super-3 number, since 3×508018813 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50802881) 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, 67000 + ... + 67753.

It is an arithmetic number, because the mean of its divisors is an integer number (7074585).

Almost surely, 250801881 is an apocalyptic number.

It is an amenable number.

50801881 is a deficient number, since it is larger than the sum of its proper divisors (5794799).

50801881 is a wasteful number, since it uses less digits than its factorization.

50801881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134795.

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 50801881 is about 7127.5438265927. The cubic root of 50801881 is about 370.3621508945.

The spelling of 50801881 in words is "fifty million, eight hundred one thousand, eight hundred eighty-one".

Divisors: 1 13 29 377 134753 1751789 3907837 50801881