Base | Representation |
---|---|
bin | 11100001000101111… |
… | …000101010000111011 |
3 | 2212222110221122012001 |
4 | 130020233011100323 |
5 | 443333100044011 |
6 | 21513501401431 |
7 | 2116444035412 |
oct | 341057052073 |
9 | 85873848161 |
10 | 30211331131 |
11 | 118a3566263 |
12 | 5a31869277 |
13 | 2b060b8ac7 |
14 | 166853a479 |
15 | bbc4707c1 |
hex | 708bc543b |
30211331131 has 8 divisors (see below), whose sum is σ = 32097780720. Its totient is φ = 28381193568.
The previous prime is 30211331107. The next prime is 30211331153. The reversal of 30211331131 is 13113311203.
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 30211331131 - 29 = 30211330619 is a prime.
It is a super-2 number, since 2×302113311312 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30211331099 and 30211331108.
It is not an unprimeable number, because it can be changed into a prime (30211331531) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14076901 + ... + 14079046.
It is an arithmetic number, because the mean of its divisors is an integer number (4012222590).
Almost surely, 230211331131 is an apocalyptic number.
30211331131 is a deficient number, since it is larger than the sum of its proper divisors (1886449589).
30211331131 is a wasteful number, since it uses less digits than its factorization.
30211331131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28156013.
The product of its (nonzero) digits is 162, while the sum is 19.
Adding to 30211331131 its reverse (13113311203), we get a palindrome (43324642334).
The spelling of 30211331131 in words is "thirty billion, two hundred eleven million, three hundred thirty-one thousand, one hundred thirty-one".
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