Base | Representation |
---|---|
bin | 11011111100011101… |
… | …001001011000101110 |
3 | 2212110010021022111020 |
4 | 123330131021120232 |
5 | 442422324142310 |
6 | 21441221435010 |
7 | 2111362602666 |
oct | 337435113056 |
9 | 85403238436 |
10 | 30005302830 |
11 | 117a8236138 |
12 | 599486ba66 |
13 | 2aa2500979 |
14 | 16490291a6 |
15 | ba9325170 |
hex | 6fc74962e |
30005302830 has 16 divisors (see below), whose sum is σ = 72012726864. Its totient is φ = 8001414080.
The previous prime is 30005302823. The next prime is 30005302841. The reversal of 30005302830 is 3820350003.
It is a self number, because there is not a number n which added to its sum of digits gives 30005302830.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500088351 + ... + 500088410.
It is an arithmetic number, because the mean of its divisors is an integer number (4500795429).
Almost surely, 230005302830 is an apocalyptic number.
30005302830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30005302830 is an abundant number, since it is smaller than the sum of its proper divisors (42007424034).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30005302830 is a wasteful number, since it uses less digits than its factorization.
30005302830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1000176771.
The product of its (nonzero) digits is 2160, while the sum is 24.
Adding to 30005302830 its reverse (3820350003), we get a palindrome (33825652833).
The spelling of 30005302830 in words is "thirty billion, five million, three hundred two thousand, eight hundred thirty".
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