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50380182081 = 3214221393629
BaseRepresentation
bin101110111010111001…
…001001001001000001
311211001002012102101200
4232322321021021001
51311134311311311
635051102051413
73432316324215
oct567271111101
9154032172350
1050380182081
111a403332519
129920279b69
13499b762a38
14261d016945
15149ce41556
hexbbae49241

50380182081 has 12 divisors (see below), whose sum is σ = 72776676180. Its totient is φ = 33584340960.

The previous prime is 50380182011. The next prime is 50380182121. The reversal of 50380182081 is 18028108305.

It can be written as a sum of positive squares in 2 ways, for example, as 15395846400 + 34984335681 = 124080^2 + 187041^2 .

It is not a de Polignac number, because 50380182081 - 27 = 50380181953 is a prime.

It is a super-2 number, since 2×503801820812 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50380182011) 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 11 ways as a sum of consecutive naturals, for example, 68826 + ... + 324803.

It is an arithmetic number, because the mean of its divisors is an integer number (6064723015).

Almost surely, 250380182081 is an apocalyptic number.

It is an amenable number.

50380182081 is a deficient number, since it is larger than the sum of its proper divisors (22396494099).

50380182081 is a wasteful number, since it uses less digits than its factorization.

50380182081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407856 (or 407853 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The spelling of 50380182081 in words is "fifty billion, three hundred eighty million, one hundred eighty-two thousand, eighty-one".

Divisors: 1 3 9 14221 42663 127989 393629 1180887 3542661 5597798009 16793394027 50380182081