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50280408505 = 542172384653
BaseRepresentation
bin101110110100111100…
…100010010110111001
311210210010110101210001
4232310330202112321
51310433241033010
635033135353001
73426665264155
oct566474422671
9153703411701
1050280408505
111a361a86118
1298b2982761
134983b9b312
14260da84065
1514942d3c3a
hexbb4f225b9

50280408505 has 8 divisors (see below), whose sum is σ = 60350823432. Its totient is φ = 40214771328.

The previous prime is 50280408469. The next prime is 50280408511. The reversal of 50280408505 is 50580408205.

It can be written as a sum of positive squares in 4 ways, for example, as 30024572176 + 20255836329 = 173276^2 + 142323^2 .

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 50280408505 - 29 = 50280407993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1171242 + ... + 1213411.

It is an arithmetic number, because the mean of its divisors is an integer number (7543852929).

Almost surely, 250280408505 is an apocalyptic number.

It is an amenable number.

50280408505 is a deficient number, since it is larger than the sum of its proper divisors (10070414927).

50280408505 is a wasteful number, since it uses less digits than its factorization.

50280408505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2388875.

The product of its (nonzero) digits is 64000, while the sum is 37.

The spelling of 50280408505 in words is "fifty billion, two hundred eighty million, four hundred eight thousand, five hundred five".

Divisors: 1 5 4217 21085 2384653 11923265 10056081701 50280408505