Base | Representation |
---|---|
bin | 11110111111110101101… |
… | …101000001010100100011 |
3 | 21112122020111100011210011 |
4 | 132333311231001110203 |
5 | 234400002021000311 |
6 | 4310322500345351 |
7 | 306616430006662 |
oct | 36776555012443 |
9 | 7478214304704 |
10 | 2130131031331 |
11 | 751424486776 |
12 | 2a4a006a5257 |
13 | 125b41625c24 |
14 | 75155506dd9 |
15 | 3a6225c5321 |
hex | 1eff5b41523 |
2130131031331 has 4 divisors (see below), whose sum is σ = 2130265891152. Its totient is φ = 2129996171512.
The previous prime is 2130131031299. The next prime is 2130131031367. The reversal of 2130131031331 is 1331301310312.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 2130131031331 - 25 = 2130131031299 is a prime.
It is a super-2 number, since 2×21301310313312 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2130131001331) 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, 67406215 + ... + 67437808.
It is an arithmetic number, because the mean of its divisors is an integer number (532566472788).
Almost surely, 22130131031331 is an apocalyptic number.
2130131031331 is a deficient number, since it is larger than the sum of its proper divisors (134859821).
2130131031331 is a wasteful number, since it uses less digits than its factorization.
2130131031331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 134859820.
The product of its (nonzero) digits is 486, while the sum is 22.
Adding to 2130131031331 its reverse (1331301310312), we get a palindrome (3461432341643).
The spelling of 2130131031331 in words is "two trillion, one hundred thirty billion, one hundred thirty-one million, thirty-one thousand, three hundred thirty-one".
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