Base | Representation |
---|---|
bin | 11100000001010011… |
… | …000010011010011001 |
3 | 2212122210010112102202 |
4 | 130001103002122121 |
5 | 443104123221110 |
6 | 21453242535545 |
7 | 2113400234603 |
oct | 340123023231 |
9 | 85583115382 |
10 | 30086538905 |
11 | 1183a080a95 |
12 | 59b7b075b5 |
13 | 2ab62a4857 |
14 | 1655b34173 |
15 | bb15200a5 |
hex | 7014c2699 |
30086538905 has 4 divisors (see below), whose sum is σ = 36103846692. Its totient is φ = 24069231120.
The previous prime is 30086538877. The next prime is 30086538959. The reversal of 30086538905 is 50983568003.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50983568003 = 461 ⋅110593423.
It can be written as a sum of positive squares in 2 ways, for example, as 7445618944 + 22640919961 = 86288^2 + 150469^2 .
It is not a de Polignac number, because 30086538905 - 212 = 30086534809 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30086538905.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3008653886 + ... + 3008653895.
It is an arithmetic number, because the mean of its divisors is an integer number (9025961673).
Almost surely, 230086538905 is an apocalyptic number.
It is an amenable number.
30086538905 is a deficient number, since it is larger than the sum of its proper divisors (6017307787).
30086538905 is an equidigital number, since it uses as much as digits as its factorization.
30086538905 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6017307786.
The product of its (nonzero) digits is 777600, while the sum is 47.
The spelling of 30086538905 in words is "thirty billion, eighty-six million, five hundred thirty-eight thousand, nine hundred five".
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