Search a number
-
+
50471715281 = 1337251418051
BaseRepresentation
bin101111000000010110…
…010100000111010001
311211021110102210100012
4233000112110013101
51311331224342111
635104132004305
73434510333651
oct570026240721
9154243383305
1050471715281
111a44aa70799
129946a60695
1349b47007b0
14262b242361
1514a5ec248b
hexbc05941d1

50471715281 has 16 divisors (see below), whose sum is σ = 56045723328. Its totient is φ = 45149400000.

The previous prime is 50471715251. The next prime is 50471715289. The reversal of 50471715281 is 18251717405.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50471715281 is a prime.

It is a super-2 number, since 2×504717152812 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50471715289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88295 + ... + 329756.

It is an arithmetic number, because the mean of its divisors is an integer number (3502857708).

Almost surely, 250471715281 is an apocalyptic number.

It is an amenable number.

50471715281 is a deficient number, since it is larger than the sum of its proper divisors (5574008047).

50471715281 is a wasteful number, since it uses less digits than its factorization.

50471715281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418352.

The product of its (nonzero) digits is 78400, while the sum is 41.

The spelling of 50471715281 in words is "fifty billion, four hundred seventy-one million, seven hundred fifteen thousand, two hundred eighty-one".

Divisors: 1 13 37 251 481 3263 9287 120731 418051 5434663 15467887 104930801 201082531 1364100413 3882439637 50471715281