Base | Representation |
---|---|
bin | 11100011011011001… |
… | …010111111111111101 |
3 | 2220210022001120122102 |
4 | 130123121113333331 |
5 | 1000003222022210 |
6 | 22004523554445 |
7 | 2130265120403 |
oct | 343331277775 |
9 | 86708046572 |
10 | 30524407805 |
11 | 11a44261411 |
12 | 5aba68ba25 |
13 | 2b55c14988 |
14 | 1697d55473 |
15 | bd9bb3ea5 |
hex | 71b657ffd |
30524407805 has 4 divisors (see below), whose sum is σ = 36629289372. Its totient is φ = 24419526240.
The previous prime is 30524407787. The next prime is 30524407813. The reversal of 30524407805 is 50870442503.
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: 50870442503 = 13597 ⋅3741299.
It can be written as a sum of positive squares in 2 ways, for example, as 15822117796 + 14702290009 = 125786^2 + 121253^2 .
It is not a de Polignac number, because 30524407805 - 224 = 30507630589 is a prime.
It is a Duffinian number.
It is a congruent number.
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, 3052440776 + ... + 3052440785.
It is an arithmetic number, because the mean of its divisors is an integer number (9157322343).
Almost surely, 230524407805 is an apocalyptic number.
It is an amenable number.
30524407805 is a deficient number, since it is larger than the sum of its proper divisors (6104881567).
30524407805 is an equidigital number, since it uses as much as digits as its factorization.
30524407805 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6104881566.
The product of its (nonzero) digits is 134400, while the sum is 38.
The spelling of 30524407805 in words is "thirty billion, five hundred twenty-four million, four hundred seven thousand, eight hundred five".
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