Base | Representation |
---|---|
bin | 1101101111110110000010… |
… | …10100001101110010111001 |
3 | 10222001002001220210212002200 |
4 | 12313323001110031302321 |
5 | 12430302021110200241 |
6 | 144144010541220413 |
7 | 6240063614520462 |
oct | 667730124156271 |
9 | 128032056725080 |
10 | 30231223131321 |
11 | 96a5a98370a13 |
12 | 348301b561709 |
13 | 13b3a3b356454 |
14 | 7672b0107d69 |
15 | 3765b44314b6 |
hex | 1b7ec150dcb9 |
30231223131321 has 24 divisors (see below), whose sum is σ = 44056328041440. Its totient is φ = 19975400323200.
The previous prime is 30231223131251. The next prime is 30231223131331. The reversal of 30231223131321 is 12313132213203.
30231223131321 is a `hidden beast` number, since 3 + 0 + 2 + 3 + 1 + 22 + 313 + 1 + 321 = 666.
It is not a de Polignac number, because 30231223131321 - 217 = 30231223000249 is a prime.
It is a super-2 number, since 2×302312231313212 (a number of 28 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30231223131331) 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, 32570451 + ... + 33485768.
It is an arithmetic number, because the mean of its divisors is an integer number (1835680335060).
Almost surely, 230231223131321 is an apocalyptic number.
It is an amenable number.
30231223131321 is a deficient number, since it is larger than the sum of its proper divisors (13825104910119).
30231223131321 is a wasteful number, since it uses less digits than its factorization.
30231223131321 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66056677 (or 66056674 counting only the distinct ones).
The product of its (nonzero) digits is 3888, while the sum is 27.
Adding to 30231223131321 its reverse (12313132213203), we get a palindrome (42544355344524).
The spelling of 30231223131321 in words is "thirty trillion, two hundred thirty-one billion, two hundred twenty-three million, one hundred thirty-one thousand, three hundred twenty-one".
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