Base | Representation |
---|---|
bin | 1001001111110… |
… | …1111110111111 |
3 | 2200222200120200 |
4 | 2103331332333 |
5 | 34412222210 |
6 | 3503214543 |
7 | 650462424 |
oct | 223757677 |
9 | 80880520 |
10 | 38789055 |
11 | 1a993878 |
12 | 10ba7453 |
13 | 8061606 |
14 | 5219d4b |
15 | 36130c0 |
hex | 24fdfbf |
38789055 has 12 divisors (see below), whose sum is σ = 67234440. Its totient is φ = 20687472.
The previous prime is 38789041. The next prime is 38789077. The reversal of 38789055 is 55098783.
It is not a de Polignac number, because 38789055 - 210 = 38788031 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 861979 = 38789055 / (3 + 8 + 7 + 8 + 9 + 0 + 5 + 5).
It is a self number, because there is not a number n which added to its sum of digits gives 38789055.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 430945 + ... + 431034.
It is an arithmetic number, because the mean of its divisors is an integer number (5602870).
Almost surely, 238789055 is an apocalyptic number.
38789055 is a deficient number, since it is larger than the sum of its proper divisors (28445385).
38789055 is a wasteful number, since it uses less digits than its factorization.
38789055 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 861990 (or 861987 counting only the distinct ones).
The product of its (nonzero) digits is 302400, while the sum is 45.
The square root of 38789055 is about 6228.0859820654. The cubic root of 38789055 is about 338.5086205892.
The spelling of 38789055 in words is "thirty-eight million, seven hundred eighty-nine thousand, fifty-five".
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