Base | Representation |
---|---|
bin | 10110101100010… |
… | …111101010111101 |
3 | 222112102002102210 |
4 | 112230113222331 |
5 | 1234431330140 |
6 | 101440211033 |
7 | 12302103063 |
oct | 2654275275 |
9 | 875362383 |
10 | 380730045 |
11 | 185a04133 |
12 | a7609a79 |
13 | 60b55567 |
14 | 387ca033 |
15 | 23658d80 |
hex | 16b17abd |
380730045 has 48 divisors (see below), whose sum is σ = 656754048. Its totient is φ = 188267520.
The previous prime is 380730043. The next prime is 380730083. The reversal of 380730045 is 540037083.
It is not a de Polignac number, because 380730045 - 21 = 380730043 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 380729994 and 380730021.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380730043) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 307167 + ... + 308403.
It is an arithmetic number, because the mean of its divisors is an integer number (13682376).
Almost surely, 2380730045 is an apocalyptic number.
It is an amenable number.
380730045 is a deficient number, since it is larger than the sum of its proper divisors (276024003).
380730045 is a wasteful number, since it uses less digits than its factorization.
380730045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1350 (or 1333 counting only the distinct ones).
The product of its (nonzero) digits is 10080, while the sum is 30.
The square root of 380730045 is about 19512.3049637914. The cubic root of 380730045 is about 724.7791923687.
The spelling of 380730045 in words is "three hundred eighty million, seven hundred thirty thousand, forty-five".
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