Base | Representation |
---|---|
bin | 11100010110100101… |
… | …011000010101001001 |
3 | 2220120200010121120020 |
4 | 130112211120111021 |
5 | 444322034400214 |
6 | 21552521251053 |
7 | 2125264625631 |
oct | 342645302511 |
9 | 86520117506 |
10 | 30443668809 |
11 | 11a02725a74 |
12 | 5a97633a89 |
13 | 2b42286118 |
14 | 168b3396c1 |
15 | bd2a664a9 |
hex | 716958549 |
30443668809 has 16 divisors (see below), whose sum is σ = 40648436544. Its totient is φ = 20267366400.
The previous prime is 30443668793. The next prime is 30443668811. The reversal of 30443668809 is 90886634403.
It is a happy number.
It is not a de Polignac number, because 30443668809 - 24 = 30443668793 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30443668609) 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, 11739417 + ... + 11742009.
It is an arithmetic number, because the mean of its divisors is an integer number (2540527284).
Almost surely, 230443668809 is an apocalyptic number.
It is an amenable number.
30443668809 is a deficient number, since it is larger than the sum of its proper divisors (10204767735).
30443668809 is a wasteful number, since it uses less digits than its factorization.
30443668809 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6568.
The product of its (nonzero) digits is 2985984, while the sum is 51.
The spelling of 30443668809 in words is "thirty billion, four hundred forty-three million, six hundred sixty-eight thousand, eight hundred nine".
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