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20162 = 217593
BaseRepresentation
bin100111011000010
31000122202
410323002
51121122
6233202
7112532
oct47302
930582
1020162
111416a
12b802
13923c
1474c2
155e92
hex4ec2

20162 has 8 divisors (see below), whose sum is σ = 32076. Its totient is φ = 9472.

The previous prime is 20161. The next prime is 20173. The reversal of 20162 is 26102.

It can be written as a sum of positive squares in 2 ways, for example, as 19321 + 841 = 139^2 + 29^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20161) 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, 263 + ... + 330.

220162 is an apocalyptic number.

20162 is a deficient number, since it is larger than the sum of its proper divisors (11914).

20162 is a wasteful number, since it uses less digits than its factorization.

20162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20162 is about 141.9929575718. The cubic root of 20162 is about 27.2172684462.

Adding to 20162 its reverse (26102), we get a palindrome (46264).

It can be divided in two parts, 20 and 162, that multiplied together give a triangular number (3240 = T80).

The spelling of 20162 in words is "twenty thousand, one hundred sixty-two".

Divisors: 1 2 17 34 593 1186 10081 20162