Base | Representation |
---|---|
bin | 10111111100000… |
… | …00100111000101 |
3 | 111222211221102000 |
4 | 23332000213011 |
5 | 402401223210 |
6 | 31531535513 |
7 | 4655545515 |
oct | 1376004705 |
9 | 458757360 |
10 | 200804805 |
11 | a3392693 |
12 | 572ba599 |
13 | 327a9716 |
14 | 1c951845 |
15 | 12967ac0 |
hex | bf809c5 |
200804805 has 32 divisors (see below), whose sum is σ = 361307520. Its totient is φ = 105799680.
The previous prime is 200804803. The next prime is 200804819. The reversal of 200804805 is 508408002.
200804805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 200804805 - 21 = 200804803 is a prime.
It is a super-2 number, since 2×2008048052 = 80645139422176050, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (200804801) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2245 + ... + 20165.
It is an arithmetic number, because the mean of its divisors is an integer number (11290860).
Almost surely, 2200804805 is an apocalyptic number.
It is an amenable number.
200804805 is a deficient number, since it is larger than the sum of its proper divisors (160502715).
200804805 is a wasteful number, since it uses less digits than its factorization.
200804805 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18018 (or 18012 counting only the distinct ones).
The product of its (nonzero) digits is 2560, while the sum is 27.
The square root of 200804805 is about 14170.5612097757. The cubic root of 200804805 is about 585.5869191767.
The spelling of 200804805 in words is "two hundred million, eight hundred four thousand, eight hundred five".
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