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50641201297 = 397127559701
BaseRepresentation
bin101111001010011100…
…110110100010010001
311211201021100120110001
4233022130312202101
51312203121420142
635133024410001
73441636052201
oct571234664221
9154637316401
1050641201297
111a527702085
129993776901
134a10862b8b
142645960401
1514b5d005b7
hexbca736891

50641201297 has 4 divisors (see below), whose sum is σ = 50768761396. Its totient is φ = 50513641200.

The previous prime is 50641201283. The next prime is 50641201301. The reversal of 50641201297 is 79210214605.

50641201297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 2250362+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33938482176 + 16702719121 = 184224^2 + 129239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-50641201297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50641201207) 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, 63779454 + ... + 63780247.

It is an arithmetic number, because the mean of its divisors is an integer number (12692190349).

Almost surely, 250641201297 is an apocalyptic number.

It is an amenable number.

50641201297 is a deficient number, since it is larger than the sum of its proper divisors (127560099).

50641201297 is a wasteful number, since it uses less digits than its factorization.

50641201297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127560098.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 50641201297 in words is "fifty billion, six hundred forty-one million, two hundred one thousand, two hundred ninety-seven".

Divisors: 1 397 127559701 50641201297