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50648371199 = 51817977447
BaseRepresentation
bin101111001010111000…
…001100111111111111
311211201202211211200222
4233022320030333333
51312211440334244
635133442211555
73442054023536
oct571270147777
9154652754628
1050648371199
111a530759a18
129996053bbb
134a121a351a
1426468a931d
1514b6769bee
hexbcae0cfff

50648371199 has 4 divisors (see below), whose sum is σ = 50649400464. Its totient is φ = 50647341936.

The previous prime is 50648371157. The next prime is 50648371219. The reversal of 50648371199 is 99117384605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99117384605 = 519823476921.

It is a cyclic number.

It is not a de Polignac number, because 50648371199 - 212 = 50648367103 is a prime.

It is a super-2 number, since 2×506483711992 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50648371199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50648371129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436907 + ... + 540540.

It is an arithmetic number, because the mean of its divisors is an integer number (12662350116).

Almost surely, 250648371199 is an apocalyptic number.

50648371199 is a deficient number, since it is larger than the sum of its proper divisors (1029265).

50648371199 is an equidigital number, since it uses as much as digits as its factorization.

50648371199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029264.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 50648371199 in words is "fifty billion, six hundred forty-eight million, three hundred seventy-one thousand, one hundred ninety-nine".

Divisors: 1 51817 977447 50648371199