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50284720309 = 313737694253
BaseRepresentation
bin101110110101001100…
…111111000010110101
311210210102120110110111
4232311030333002311
51310440342022214
635033412023021
73430050033055
oct566514770265
9153712513414
1050284720309
111a36446069a
1298b4301a71
134984a4aa95
142610487565
1514948865c4
hexbb533f0b5

50284720309 has 8 divisors (see below), whose sum is σ = 50325926040. Its totient is φ = 50243536896.

The previous prime is 50284720303. The next prime is 50284720319. The reversal of 50284720309 is 90302748205.

It can be written as a sum of positive squares in 4 ways, for example, as 21740617809 + 28544102500 = 147447^2 + 168950^2 .

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 50284720309 - 213 = 50284712117 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 (50284720303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11821227 + ... + 11825479.

It is an arithmetic number, because the mean of its divisors is an integer number (6290740755).

Almost surely, 250284720309 is an apocalyptic number.

It is an amenable number.

50284720309 is a deficient number, since it is larger than the sum of its proper divisors (41205731).

50284720309 is a wasteful number, since it uses less digits than its factorization.

50284720309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11159.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 50284720309 in words is "fifty billion, two hundred eighty-four million, seven hundred twenty thousand, three hundred nine".

Divisors: 1 3137 3769 4253 11823353 13341661 16029557 50284720309