Base | Representation |
---|---|
bin | 10110101010101… |
… | …011111101011111 |
3 | 222111120200020201 |
4 | 112222223331133 |
5 | 1234323220423 |
6 | 101422524331 |
7 | 12265254613 |
oct | 2652537537 |
9 | 874520221 |
10 | 380288863 |
11 | 185732719 |
12 | a74366a7 |
13 | 60a2c7c6 |
14 | 38713343 |
15 | 235bd2ad |
hex | 16aabf5f |
380288863 has 2 divisors, whose sum is σ = 380288864. Its totient is φ = 380288862.
The previous prime is 380288837. The next prime is 380288903. The reversal of 380288863 is 368882083.
It is a weak prime.
It is an emirp because it is prime and its reverse (368882083) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-380288863 is a prime.
It is a zygodrome in base 4.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (380288063) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190144431 + 190144432.
It is an arithmetic number, because the mean of its divisors is an integer number (190144432).
Almost surely, 2380288863 is an apocalyptic number.
380288863 is a deficient number, since it is larger than the sum of its proper divisors (1).
380288863 is an equidigital number, since it uses as much as digits as its factorization.
380288863 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 442368, while the sum is 46.
The square root of 380288863 is about 19500.9964617196. The cubic root of 380288863 is about 724.4991311831.
It can be divided in two parts, 3802 and 88863, that added together give a triangular number (92665 = T430).
The spelling of 380288863 in words is "three hundred eighty million, two hundred eighty-eight thousand, eight hundred sixty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •