Base | Representation |
---|---|
bin | 10110111110001… |
… | …000111101001011 |
3 | 222212011202110002 |
4 | 112332020331023 |
5 | 1242124411423 |
6 | 102124113215 |
7 | 12356514143 |
oct | 2676107513 |
9 | 885152402 |
10 | 385388363 |
11 | 1885a5a88 |
12 | a909580b |
13 | 61ac6969 |
14 | 3927d923 |
15 | 23c79228 |
hex | 16f88f4b |
385388363 has 4 divisors (see below), whose sum is σ = 385558440. Its totient is φ = 385218288.
The previous prime is 385388359. The next prime is 385388369. The reversal of 385388363 is 363883583.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 363883583 = 7 ⋅51983369.
It is a cyclic number.
It is not a de Polignac number, because 385388363 - 22 = 385388359 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (385388369) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81593 + ... + 86186.
It is an arithmetic number, because the mean of its divisors is an integer number (96389610).
Almost surely, 2385388363 is an apocalyptic number.
385388363 is a deficient number, since it is larger than the sum of its proper divisors (170077).
385388363 is a wasteful number, since it uses less digits than its factorization.
385388363 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 170076.
The product of its digits is 1244160, while the sum is 47.
The square root of 385388363 is about 19631.3107815041. The cubic root of 385388363 is about 727.7231637453.
The spelling of 385388363 in words is "three hundred eighty-five million, three hundred eighty-eight thousand, three hundred sixty-three".
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