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200801 = 1131777
BaseRepresentation
bin110001000001100001
3101012110002
4301001201
522411201
64145345
71464266
oct610141
9335402
10200801
11127957
1298255
1370523
145326d
153e76b
hex31061

200801 has 4 divisors (see below), whose sum is σ = 202692. Its totient is φ = 198912.

The previous prime is 200797. The next prime is 200807. The reversal of 200801 is 108002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 108002 = 254001.

It can be written as a sum of positive squares in 2 ways, for example, as 40000 + 160801 = 200^2 + 401^2 .

It is a cyclic number.

It is not a de Polignac number, because 200801 - 22 = 200797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776 + ... + 1001.

It is an arithmetic number, because the mean of its divisors is an integer number (50673).

2200801 is an apocalyptic number.

It is an amenable number.

200801 is a deficient number, since it is larger than the sum of its proper divisors (1891).

200801 is a wasteful number, since it uses less digits than its factorization.

200801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 200801 is about 448.1082458514. The cubic root of 200801 is about 58.5583220440.

Adding to 200801 its reverse (108002), we get a palindrome (308803).

It can be divided in two parts, 200 and 801, that added together give a palindrome (1001).

The spelling of 200801 in words is "two hundred thousand, eight hundred one".

Divisors: 1 113 1777 200801