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313120240213241 = 2018211551475021
BaseRepresentation
bin100011100110001111111110…
…0101100001001110011111001
31112001200000001220121211020202
41013030133330230021303321
5312020130222443310431
63025541241425531545
7122645122310265146
oct10714377454116371
91461600056554222
10313120240213241
119085160363307a
122b150972aa3bb5
131059415bc714b6
145747159a533cd
15262ee990ea8cb
hex11cc7fcb09cf9

313120240213241 has 4 divisors (see below), whose sum is σ = 313121791890084. Its totient is φ = 313118688536400.

The previous prime is 313120240213199. The next prime is 313120240213243. The reversal of 313120240213241 is 142312042021313.

It is a happy number.

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 219920446981225 + 93199793232016 = 14829715^2 + 9654004^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-313120240213241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313120240213243) 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, 775535690 + ... + 775939331.

It is an arithmetic number, because the mean of its divisors is an integer number (78280447972521).

Almost surely, 2313120240213241 is an apocalyptic number.

It is an amenable number.

313120240213241 is a deficient number, since it is larger than the sum of its proper divisors (1551676843).

313120240213241 is a wasteful number, since it uses less digits than its factorization.

313120240213241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551676842.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 313120240213241 its reverse (142312042021313), we get a palindrome (455432282234554).

The spelling of 313120240213241 in words is "three hundred thirteen trillion, one hundred twenty billion, two hundred forty million, two hundred thirteen thousand, two hundred forty-one".

Divisors: 1 201821 1551475021 313120240213241