Base | Representation |
---|---|
bin | 11100001000101111… |
… | …000101101110100111 |
3 | 2212222110221201210102 |
4 | 130020233011232213 |
5 | 443333100124111 |
6 | 21513501414315 |
7 | 2116444044065 |
oct | 341057055647 |
9 | 85873851712 |
10 | 30211333031 |
11 | 118a3567730 |
12 | 5a3186a39b |
13 | 2b060b9929 |
14 | 166853b035 |
15 | bbc47113b |
hex | 708bc5ba7 |
30211333031 has 8 divisors (see below), whose sum is σ = 32966223744. Its totient is φ = 27457843320.
The previous prime is 30211333027. The next prime is 30211333067. The reversal of 30211333031 is 13033311203.
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 30211333031 - 22 = 30211333027 is a prime.
It is a super-3 number, since 3×302113330313 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30211332994 and 30211333012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30211333631) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304901 + ... + 391646.
It is an arithmetic number, because the mean of its divisors is an integer number (4120777968).
Almost surely, 230211333031 is an apocalyptic number.
30211333031 is a deficient number, since it is larger than the sum of its proper divisors (2754890713).
30211333031 is a wasteful number, since it uses less digits than its factorization.
30211333031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 700501.
The product of its (nonzero) digits is 486, while the sum is 20.
Adding to 30211333031 its reverse (13033311203), we get a palindrome (43244644234).
The spelling of 30211333031 in words is "thirty billion, two hundred eleven million, three hundred thirty-three thousand, thirty-one".
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