Base | Representation |
---|---|
bin | 1101101111110101110110… |
… | …01111011010111101001101 |
3 | 10222001001210211000202222212 |
4 | 12313322323033122331031 |
5 | 12430301314012224323 |
6 | 144143552500520205 |
7 | 6240061236310346 |
oct | 667727317327515 |
9 | 128031724022885 |
10 | 30231121211213 |
11 | 96a5a4588891a |
12 | 3482bb13b0065 |
13 | 13b3a231bc9b0 |
14 | 7672a07770cd |
15 | 3765aa4ecb78 |
hex | 1b7ebb3daf4d |
30231121211213 has 8 divisors (see below), whose sum is σ = 32599943072256. Its totient is φ = 27868492350000.
The previous prime is 30231121211197. The next prime is 30231121211261. The reversal of 30231121211213 is 31211212113203.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30231121211213 - 24 = 30231121211197 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30231121211413) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (31) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1548239813 + ... + 1548259338.
It is an arithmetic number, because the mean of its divisors is an integer number (4074992884032).
Almost surely, 230231121211213 is an apocalyptic number.
It is an amenable number.
30231121211213 is a deficient number, since it is larger than the sum of its proper divisors (2368821861043).
30231121211213 is a wasteful number, since it uses less digits than its factorization.
30231121211213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3096499915.
The product of its (nonzero) digits is 432, while the sum is 23.
Adding to 30231121211213 its reverse (31211212113203), we get a palindrome (61442333324416).
The spelling of 30231121211213 in words is "thirty trillion, two hundred thirty-one billion, one hundred twenty-one million, two hundred eleven thousand, two hundred thirteen".
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