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50605945 = 513778553
BaseRepresentation
bin1100000100001…
…0111101111001
310112020001022021
43001002331321
5100423342240
65004354441
71153100125
oct301027571
9115201267
1050605945
1126624aa5
1214b45a21
13a63b160
146a14585
15469954a
hex3042f79

50605945 has 8 divisors (see below), whose sum is σ = 65398536. Its totient is φ = 37370496.

The previous prime is 50605943. The next prime is 50605993. The reversal of 50605945 is 54950605.

It is a happy number.

50605945 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 139129 + 50466816 = 373^2 + 7104^2 .

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 50605945 - 21 = 50605943 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 50605945.

It is not an unprimeable number, because it can be changed into a prime (50605943) 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, 389212 + ... + 389341.

It is an arithmetic number, because the mean of its divisors is an integer number (8174817).

Almost surely, 250605945 is an apocalyptic number.

It is an amenable number.

50605945 is a deficient number, since it is larger than the sum of its proper divisors (14792591).

50605945 is a wasteful number, since it uses less digits than its factorization.

50605945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778571.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 50605945 is about 7113.7855604453. The cubic root of 50605945 is about 369.8853918228.

The spelling of 50605945 in words is "fifty million, six hundred five thousand, nine hundred forty-five".

Divisors: 1 5 13 65 778553 3892765 10121189 50605945