Base | Representation |
---|---|
bin | 1011100111111000111 |
3 | 201100110100 |
4 | 1130333013 |
5 | 44141441 |
6 | 12055143 |
7 | 3144261 |
oct | 1347707 |
9 | 640410 |
10 | 380871 |
11 | 240177 |
12 | 1644b3 |
13 | 10448a |
14 | 9cb31 |
15 | 77cb6 |
hex | 5cfc7 |
380871 has 12 divisors (see below), whose sum is σ = 556920. Its totient is φ = 250800.
The previous prime is 380869. The next prime is 380879. The reversal of 380871 is 178083.
It is not a de Polignac number, because 380871 - 21 = 380869 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380879) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700 + ... + 1118.
It is an arithmetic number, because the mean of its divisors is an integer number (46410).
2380871 is an apocalyptic number.
380871 is a deficient number, since it is larger than the sum of its proper divisors (176049).
380871 is a wasteful number, since it uses less digits than its factorization.
380871 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 526 (or 523 counting only the distinct ones).
The product of its (nonzero) digits is 1344, while the sum is 27.
The square root of 380871 is about 617.1474702209. The cubic root of 380871 is about 72.4868624630.
The spelling of 380871 in words is "three hundred eighty thousand, eight hundred seventy-one".
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