Base | Representation |
---|---|
bin | 10110101100101… |
… | …010000000101000 |
3 | 222112112220110211 |
4 | 112230222000220 |
5 | 1234441231120 |
6 | 101441550504 |
7 | 12302535061 |
oct | 2654520050 |
9 | 875486424 |
10 | 380805160 |
11 | 185a5560a |
12 | a7645434 |
13 | 60b807c8 |
14 | 38809568 |
15 | 2367125a |
hex | 16b2a028 |
380805160 has 16 divisors (see below), whose sum is σ = 856811700. Its totient is φ = 152322048.
The previous prime is 380805149. The next prime is 380805167. The reversal of 380805160 is 61508083.
It can be written as a sum of positive squares in 2 ways, for example, as 309267396 + 71537764 = 17586^2 + 8458^2 .
It is not an unprimeable number, because it can be changed into a prime (380805167) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4760025 + ... + 4760104.
Almost surely, 2380805160 is an apocalyptic number.
It is an amenable number.
380805160 is an abundant number, since it is smaller than the sum of its proper divisors (476006540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
380805160 is a wasteful number, since it uses less digits than its factorization.
380805160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9520140 (or 9520136 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 31.
The square root of 380805160 is about 19514.2296799028. The cubic root of 380805160 is about 724.8268536183.
The spelling of 380805160 in words is "three hundred eighty million, eight hundred five thousand, one hundred sixty".
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