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201892 = 22172969
BaseRepresentation
bin110001010010100100
3101020221111
4301102210
522430032
64154404
71500415
oct612244
9336844
10201892
11128759
1298a04
1370b82
145380c
153ec47
hex314a4

201892 has 12 divisors (see below), whose sum is σ = 374220. Its totient is φ = 94976.

The previous prime is 201889. The next prime is 201893. The reversal of 201892 is 298102.

It can be written as a sum of positive squares in 2 ways, for example, as 60516 + 141376 = 246^2 + 376^2 .

It is not an unprimeable number, because it can be changed into a prime (201893) 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 in 3 ways as a sum of consecutive naturals, for example, 1417 + ... + 1552.

It is an arithmetic number, because the mean of its divisors is an integer number (31185).

2201892 is an apocalyptic number.

It is an amenable number.

201892 is a deficient number, since it is larger than the sum of its proper divisors (172328).

201892 is a wasteful number, since it uses less digits than its factorization.

201892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990 (or 2988 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 201892 is about 449.3239365981. The cubic root of 201892 is about 58.6641843532.

Adding to 201892 its reverse (298102), we get a palindrome (499994).

The spelling of 201892 in words is "two hundred one thousand, eight hundred ninety-two".

Divisors: 1 2 4 17 34 68 2969 5938 11876 50473 100946 201892