Base | Representation |
---|---|
bin | 11100101011001101… |
… | …111101001110111111 |
3 | 2221110210112102221120 |
4 | 130223031331032333 |
5 | 1001024200200142 |
6 | 22051125202023 |
7 | 2140000256445 |
oct | 345315751677 |
9 | 87423472846 |
10 | 30789850047 |
11 | 12070082070 |
12 | 5b73560313 |
13 | 2b98c030a8 |
14 | 16c12d0b95 |
15 | c031487ec |
hex | 72b37d3bf |
30789850047 has 24 divisors (see below), whose sum is σ = 45115429632. Its totient is φ = 18523934400.
The previous prime is 30789850009. The next prime is 30789850079. The reversal of 30789850047 is 74005898703.
It is not a de Polignac number, because 30789850047 - 212 = 30789845951 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30789850087) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 594522 + ... + 644232.
It is an arithmetic number, because the mean of its divisors is an integer number (1879809568).
Almost surely, 230789850047 is an apocalyptic number.
30789850047 is a deficient number, since it is larger than the sum of its proper divisors (14325579585).
30789850047 is a wasteful number, since it uses less digits than its factorization.
30789850047 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49999 (or 49862 counting only the distinct ones).
The product of its (nonzero) digits is 1693440, while the sum is 51.
The spelling of 30789850047 in words is "thirty billion, seven hundred eighty-nine million, eight hundred fifty thousand, forty-seven".
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