Base | Representation |
---|---|
bin | 1101101111110110001111… |
… | …01111110000001011010011 |
3 | 10222001002100102210211101200 |
4 | 12313323013233300023103 |
5 | 12430302231214411311 |
6 | 144144025353402243 |
7 | 6240066364511340 |
oct | 667730757601323 |
9 | 128032312724350 |
10 | 30231331013331 |
11 | 96a60432562a8 |
12 | 348304b709383 |
13 | 13b3a577c9766 |
14 | 7672c058b7c7 |
15 | 3765bdb41556 |
hex | 1b7ec7bf02d3 |
30231331013331 has 24 divisors (see below), whose sum is σ = 50420180944224. Its totient is φ = 17096953029120.
The previous prime is 30231331013329. The next prime is 30231331013369. The reversal of 30231331013331 is 13331013313203.
30231331013331 is a `hidden beast` number, since 3 + 0 + 2 + 3 + 1 + 3 + 310 + 13 + 331 = 666.
It is not a de Polignac number, because 30231331013331 - 21 = 30231331013329 is a prime.
It is a super-2 number, since 2×302313310133312 (a number of 28 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 30231331013295 and 30231331013304.
It is not an unprimeable number, because it can be changed into a prime (30231331013311) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2473511400 + ... + 2473523621.
It is an arithmetic number, because the mean of its divisors is an integer number (2100840872676).
Almost surely, 230231331013331 is an apocalyptic number.
30231331013331 is a deficient number, since it is larger than the sum of its proper divisors (20188849930893).
30231331013331 is a wasteful number, since it uses less digits than its factorization.
30231331013331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4947035131 (or 4947035128 counting only the distinct ones).
The product of its (nonzero) digits is 4374, while the sum is 27.
Adding to 30231331013331 its reverse (13331013313203), we get a palindrome (43562344326534).
The spelling of 30231331013331 in words is "thirty trillion, two hundred thirty-one billion, three hundred thirty-one million, thirteen thousand, three hundred thirty-one".
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