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50051000080 = 2451213515777
BaseRepresentation
bin101110100111010001…
…011010011100010000
311210012010210020120201
4232213101122130100
51310001024000310
634554302344544
73421211324014
oct564721323420
9153163706521
1050051000080
111a254537184
129849b8b154
1349484b83a3
1425cb408544
15147e0bae3a
hexba745a710

50051000080 has 40 divisors (see below), whose sum is σ = 116464735512. Its totient is φ = 20003856384.

The previous prime is 50051000071. The next prime is 50051000081. The reversal of 50051000080 is 8000015005.

It can be written as a sum of positive squares in 4 ways, for example, as 173817856 + 49877182224 = 13184^2 + 223332^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (50051000081) 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, 160849 + ... + 354928.

Almost surely, 250051000080 is an apocalyptic number.

It is an amenable number.

50051000080 is an abundant number, since it is smaller than the sum of its proper divisors (66413735432).

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

50051000080 is a wasteful number, since it uses less digits than its factorization.

50051000080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517003 (or 516997 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

Adding to 50051000080 its reverse (8000015005), we get a palindrome (58051015085).

The spelling of 50051000080 in words is "fifty billion, fifty-one million, eighty", and thus it is an aban number and an uban number.

Divisors: 1 2 4 5 8 10 16 20 40 80 1213 2426 4852 6065 9704 12130 19408 24260 48520 97040 515777 1031554 2063108 2578885 4126216 5157770 8252432 10315540 20631080 41262160 625637501 1251275002 2502550004 3128187505 5005100008 6256375010 10010200016 12512750020 25025500040 50051000080