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50616605 = 513778717
BaseRepresentation
bin1100000100010…
…1100100011101
310112020120221002
43001011210131
5100424212410
65004520045
71153143164
oct301054435
9115216832
1050616605
1126632006
1214b50025
13a642c70
146a183db
15469c7a5
hex304591d

50616605 has 8 divisors (see below), whose sum is σ = 65412312. Its totient is φ = 37378368.

The previous prime is 50616581. The next prime is 50616607. The reversal of 50616605 is 50661605.

It can be written as a sum of positive squares in 4 ways, for example, as 2647129 + 47969476 = 1627^2 + 6926^2 .

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 50616605 - 26 = 50616541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50616607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389294 + ... + 389423.

It is an arithmetic number, because the mean of its divisors is an integer number (8176539).

Almost surely, 250616605 is an apocalyptic number.

It is an amenable number.

50616605 is a deficient number, since it is larger than the sum of its proper divisors (14795707).

50616605 is a wasteful number, since it uses less digits than its factorization.

50616605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778735.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 50616605 is about 7114.5347704541. The cubic root of 50616605 is about 369.9113617719.

The spelling of 50616605 in words is "fifty million, six hundred sixteen thousand, six hundred five".

Divisors: 1 5 13 65 778717 3893585 10123321 50616605