Base | Representation |
---|---|
bin | 1011100111100110101 |
3 | 201100020221 |
4 | 1130330311 |
5 | 44140400 |
6 | 12054341 |
7 | 3143662 |
oct | 1347465 |
9 | 640227 |
10 | 380725 |
11 | 240054 |
12 | 1643b1 |
13 | 1043a7 |
14 | 9ca69 |
15 | 77c1a |
hex | 5cf35 |
380725 has 12 divisors (see below), whose sum is σ = 480004. Its totient is φ = 299520.
The previous prime is 380713. The next prime is 380729. The reversal of 380725 is 527083.
380725 is nontrivially palindromic in base 4.
It can be written as a sum of positive squares in 6 ways, for example, as 27889 + 352836 = 167^2 + 594^2 .
It is not a de Polignac number, because 380725 - 215 = 347957 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is a d-powerful number, because it can be written as 35 + 82 + 76 + 0 + 218 + 54 .
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 380725.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380729) 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, 2347 + ... + 2503.
2380725 is an apocalyptic number.
It is an amenable number.
380725 is a deficient number, since it is larger than the sum of its proper divisors (99279).
380725 is a wasteful number, since it uses less digits than its factorization.
380725 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 264 (or 259 counting only the distinct ones).
The product of its (nonzero) digits is 1680, while the sum is 25.
The square root of 380725 is about 617.0291727301. The cubic root of 380725 is about 72.4775991039.
The spelling of 380725 in words is "three hundred eighty thousand, seven hundred twenty-five".
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