Search a number
-
+
47505212879 = 1721113243717
BaseRepresentation
bin101100001111100010…
…000000010111001111
311112121201102212001212
4230033202000113033
51234242313303004
633453521325035
73301136434625
oct541742002717
9145551385055
1047505212879
11191684aa613
12925949677b
134630c47227
142429279515
15138084896e
hexb0f8805cf

47505212879 has 8 divisors (see below), whose sum is σ = 50538027888. Its totient is φ = 44498885760.

The previous prime is 47505212873. The next prime is 47505212891. The reversal of 47505212879 is 97821250574.

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 47505212879 - 216 = 47505147343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47505212873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6618272 + ... + 6625445.

It is an arithmetic number, because the mean of its divisors is an integer number (6317253486).

Almost surely, 247505212879 is an apocalyptic number.

47505212879 is a deficient number, since it is larger than the sum of its proper divisors (3032815009).

47505212879 is a wasteful number, since it uses less digits than its factorization.

47505212879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13243945.

The product of its (nonzero) digits is 1411200, while the sum is 50.

The spelling of 47505212879 in words is "forty-seven billion, five hundred five million, two hundred twelve thousand, eight hundred seventy-nine".

Divisors: 1 17 211 3587 13243717 225143189 2794424287 47505212879