Base | Representation |
---|---|
bin | 10110101011101… |
… | …001110011111101 |
3 | 222112001112202202 |
4 | 112223221303331 |
5 | 1234404322310 |
6 | 101432201245 |
7 | 12300361331 |
oct | 2653516375 |
9 | 875045682 |
10 | 380542205 |
11 | 185895a9a |
12 | a7539225 |
13 | 60abac04 |
14 | 3877b7c1 |
15 | 2361d3a5 |
hex | 16ae9cfd |
380542205 has 16 divisors (see below), whose sum is σ = 487641600. Its totient is φ = 284450880.
The previous prime is 380542193. The next prime is 380542207. The reversal of 380542205 is 502245083.
It is not a de Polignac number, because 380542205 - 28 = 380541949 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (29).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380542207) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37835 + ... + 46824.
It is an arithmetic number, because the mean of its divisors is an integer number (30477600).
Almost surely, 2380542205 is an apocalyptic number.
It is an amenable number.
380542205 is a deficient number, since it is larger than the sum of its proper divisors (107099395).
380542205 is a wasteful number, since it uses less digits than its factorization.
380542205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 84724.
The product of its (nonzero) digits is 9600, while the sum is 29.
The square root of 380542205 is about 19507.4909970503. The cubic root of 380542205 is about 724.6599784875.
Adding to 380542205 its reverse (502245083), we get a palindrome (882787288).
The spelling of 380542205 in words is "three hundred eighty million, five hundred forty-two thousand, two hundred five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •