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50684297664 = 263711133147181
BaseRepresentation
bin101111001101000001…
…010000000111000000
311211211021110002112210
4233031001100013000
51312300140011124
635141204222120
73443001264450
oct571501200700
9154737402483
1050684297664
111a549a68010
1299a609a940
134a19771ba0
14264b57bd60
1514b99b4a29
hexbcd0501c0

50684297664 has 896 divisors, whose sum is σ = 190864687104. Its totient is φ = 11446272000.

The previous prime is 50684297639. The next prime is 50684297681. The reversal of 50684297664 is 46679248605.

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 280023654 + ... + 280023834.

It is an arithmetic number, because the mean of its divisors is an integer number (213018624).

Almost surely, 250684297664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50684297664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95432343552).

50684297664 is an abundant number, since it is smaller than the sum of its proper divisors (140180389440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50684297664 is a wasteful number, since it uses less digits than its factorization.

50684297664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 50684297664 in words is "fifty billion, six hundred eighty-four million, two hundred ninety-seven thousand, six hundred sixty-four".