Base | Representation |
---|---|
bin | 11100001000101010… |
… | …100000010001000011 |
3 | 2212222101200122221011 |
4 | 130020222200101003 |
5 | 443332243143021 |
6 | 21513415541351 |
7 | 2116430606464 |
oct | 341052402103 |
9 | 85871618834 |
10 | 30210131011 |
11 | 118a2916625 |
12 | 5a3138a857 |
13 | 2b05a88788 |
14 | 1668306d6b |
15 | bbc2d4de1 |
hex | 708aa0443 |
30210131011 has 16 divisors (see below), whose sum is σ = 31863538944. Its totient is φ = 28585823904.
The previous prime is 30210130991. The next prime is 30210131023. The reversal of 30210131011 is 11013101203.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30210131011 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30210130982 and 30210131000.
It is not an unprimeable number, because it can be changed into a prime (30210131411) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1795540 + ... + 1812286.
It is an arithmetic number, because the mean of its divisors is an integer number (1991471184).
Almost surely, 230210131011 is an apocalyptic number.
30210131011 is a deficient number, since it is larger than the sum of its proper divisors (1653407933).
30210131011 is a wasteful number, since it uses less digits than its factorization.
30210131011 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17610.
The product of its (nonzero) digits is 18, while the sum is 13.
Adding to 30210131011 its reverse (11013101203), we get a palindrome (41223232214).
The spelling of 30210131011 in words is "thirty billion, two hundred ten million, one hundred thirty-one thousand, eleven".
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