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200881 is a prime number
BaseRepresentation
bin110001000010110001
3101012120001
4301002301
522412011
64150001
71464442
oct610261
9335501
10200881
11127a1a
1298301
1370585
14532c9
153e7c1
hex310b1

200881 has 2 divisors, whose sum is σ = 200882. Its totient is φ = 200880.

The previous prime is 200869. The next prime is 200891. The reversal of 200881 is 188002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194481 + 6400 = 441^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 200881 - 211 = 198833 is a prime.

It is a super-2 number, since 2×2008812 = 80706352322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100440 + 100441.

It is an arithmetic number, because the mean of its divisors is an integer number (100441).

2200881 is an apocalyptic number.

It is an amenable number.

200881 is a deficient number, since it is larger than the sum of its proper divisors (1).

200881 is an equidigital number, since it uses as much as digits as its factorization.

200881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 200881 is about 448.1975011086. The cubic root of 200881 is about 58.5660976423.

Adding to 200881 its reverse (188002), we get a palindrome (388883).

It can be divided in two parts, 200 and 881, that added together give a triangular number (1081 = T46).

The spelling of 200881 in words is "two hundred thousand, eight hundred eighty-one".