Base | Representation |
---|---|
bin | 10110101011000… |
… | …010010110111101 |
3 | 222111202100002120 |
4 | 112223002112331 |
5 | 1234334134410 |
6 | 101424513153 |
7 | 12266116233 |
oct | 2653022675 |
9 | 874670076 |
10 | 380380605 |
11 | 185795640 |
12 | a747b7b9 |
13 | 60a624a7 |
14 | 38738953 |
15 | 235da570 |
hex | 16ac25bd |
380380605 has 16 divisors (see below), whose sum is σ = 663937344. Its totient is φ = 184426880.
The previous prime is 380380597. The next prime is 380380607. The reversal of 380380605 is 506083083.
It is not a de Polignac number, because 380380605 - 23 = 380380597 is a prime.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380380607) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1152504 + ... + 1152833.
It is an arithmetic number, because the mean of its divisors is an integer number (41496084).
Almost surely, 2380380605 is an apocalyptic number.
It is an amenable number.
380380605 is a deficient number, since it is larger than the sum of its proper divisors (283556739).
380380605 is a wasteful number, since it uses less digits than its factorization.
380380605 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2305356.
The product of its (nonzero) digits is 17280, while the sum is 33.
The square root of 380380605 is about 19503.3485586450. The cubic root of 380380605 is about 724.5573865968.
The spelling of 380380605 in words is "three hundred eighty million, three hundred eighty thousand, six hundred five".
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