Base | Representation |
---|---|
bin | 110100100110101010010111… |
… | …110011001011101010001101 |
3 | 1010100011100100111222100221102 |
4 | 310212222113303023222031 |
5 | 220311011030304034203 |
6 | 2140015045325512445 |
7 | 66505602616451066 |
oct | 6446522763135215 |
9 | 1110140314870842 |
10 | 231355255143053 |
11 | 67798238122378 |
12 | 21b46246a12725 |
13 | 9c12926217482 |
14 | 411b922ba556d |
15 | 1bb3133b87888 |
hex | d26a97ccba8d |
231355255143053 has 4 divisors (see below), whose sum is σ = 231359054203200. Its totient is φ = 231351456082908.
The previous prime is 231355255143037. The next prime is 231355255143073. The reversal of 231355255143053 is 350341552553132.
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 231355255143053 - 24 = 231355255143037 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 231355255142989 and 231355255143007.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231355255143073) 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, 1899438725 + ... + 1899560522.
It is an arithmetic number, because the mean of its divisors is an integer number (57839763550800).
Almost surely, 2231355255143053 is an apocalyptic number.
It is an amenable number.
231355255143053 is a deficient number, since it is larger than the sum of its proper divisors (3799060147).
231355255143053 is an equidigital number, since it uses as much as digits as its factorization.
231355255143053 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3799060146.
The product of its (nonzero) digits is 4050000, while the sum is 47.
The spelling of 231355255143053 in words is "two hundred thirty-one trillion, three hundred fifty-five billion, two hundred fifty-five million, one hundred forty-three thousand, fifty-three".
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