Base | Representation |
---|---|
bin | 11101110010101001110101… |
… | …011110101100010111100101 |
3 | 122011220210110210111120102001 |
4 | 131302221311132230113211 |
5 | 114133200122241441401 |
6 | 1142355412330445301 |
7 | 36412121615206636 |
oct | 3562516536542745 |
9 | 564823423446361 |
10 | 131024243312101 |
11 | 38826084611347 |
12 | 12841461b93831 |
13 | 58156c138a5c9 |
14 | 244d87029988d |
15 | 1023394363601 |
hex | 772a757ac5e5 |
131024243312101 has 4 divisors (see below), whose sum is σ = 131025573889600. Its totient is φ = 131022912734604.
The previous prime is 131024243312077. The next prime is 131024243312111. The reversal of 131024243312101 is 101213342420131.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 131024243312101 - 25 = 131024243312069 is a prime.
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 131024243312101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (131024243312111) 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, 665141031 + ... + 665337988.
It is an arithmetic number, because the mean of its divisors is an integer number (32756393472400).
Almost surely, 2131024243312101 is an apocalyptic number.
It is an amenable number.
131024243312101 is a deficient number, since it is larger than the sum of its proper divisors (1330577499).
131024243312101 is an equidigital number, since it uses as much as digits as its factorization.
131024243312101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1330577498.
The product of its (nonzero) digits is 3456, while the sum is 28.
Adding to 131024243312101 its reverse (101213342420131), we get a palindrome (232237585732232).
The spelling of 131024243312101 in words is "one hundred thirty-one trillion, twenty-four billion, two hundred forty-three million, three hundred twelve thousand, one hundred one".
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