Base | Representation |
---|---|
bin | 1011100110100001001 |
3 | 201022111100 |
4 | 1130310021 |
5 | 44131134 |
6 | 12052013 |
7 | 3142236 |
oct | 1346411 |
9 | 638440 |
10 | 380169 |
11 | 23a699 |
12 | 164009 |
13 | 10406a |
14 | 9c78d |
15 | 77999 |
hex | 5cd09 |
380169 has 12 divisors (see below), whose sum is σ = 560196. Its totient is φ = 248352.
The previous prime is 380147. The next prime is 380179. The reversal of 380169 is 961083.
It can be written as a sum of positive squares in 2 ways, for example, as 230400 + 149769 = 480^2 + 387^2 .
It is not a de Polignac number, because 380169 - 27 = 380041 is a prime.
It is a super-2 number, since 2×3801692 = 289056937122, which contains 22 as substring.
It is a plaindrome in base 15.
It is a zygodrome in base 15.
It is not an unprimeable number, because it can be changed into a prime (380129) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79 + ... + 875.
It is an arithmetic number, because the mean of its divisors is an integer number (46683).
2380169 is an apocalyptic number.
It is an amenable number.
380169 is a deficient number, since it is larger than the sum of its proper divisors (180027).
380169 is a wasteful number, since it uses less digits than its factorization.
380169 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 856 (or 853 counting only the distinct ones).
The product of its (nonzero) digits is 1296, while the sum is 27.
The square root of 380169 is about 616.5784621603. The cubic root of 380169 is about 72.4423005047.
Subtracting from 380169 its product of nonzero digits (1296), we obtain a palindrome (378873).
It can be divided in two parts, 38016 and 9, that added together give a square (38025 = 1952).
The spelling of 380169 in words is "three hundred eighty thousand, one hundred sixty-nine".
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