Base | Representation |
---|---|
bin | 10110101010101… |
… | …011111110101011 |
3 | 222111120200100112 |
4 | 112222223332223 |
5 | 1234323221224 |
6 | 101422524535 |
7 | 12265255052 |
oct | 2652537653 |
9 | 874520315 |
10 | 380288939 |
11 | 185732788 |
12 | a743674b |
13 | 60a2c854 |
14 | 38713399 |
15 | 235bd30e |
hex | 16aabfab |
380288939 has 8 divisors (see below), whose sum is σ = 390429072. Its totient is φ = 370258720.
The previous prime is 380288911. The next prime is 380288941. The reversal of 380288939 is 939882083.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-380288939 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (380288959) 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 7 ways as a sum of consecutive naturals, for example, 20444 + ... + 34329.
It is an arithmetic number, because the mean of its divisors is an integer number (48803634).
Almost surely, 2380288939 is an apocalyptic number.
380288939 is a deficient number, since it is larger than the sum of its proper divisors (10140133).
380288939 is a wasteful number, since it uses less digits than its factorization.
380288939 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 54957.
The product of its (nonzero) digits is 746496, while the sum is 50.
The square root of 380288939 is about 19500.9984103379. The cubic root of 380288939 is about 724.4991794463.
The spelling of 380288939 in words is "three hundred eighty million, two hundred eighty-eight thousand, nine hundred thirty-nine".
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