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213082 = 2106541
BaseRepresentation
bin110100000001011010
3101211021221
4310001122
523304312
64322254
71545142
oct640132
9354257
10213082
11136101
12a338a
1375cac
1457922
1543207
hex3405a

213082 has 4 divisors (see below), whose sum is σ = 319626. Its totient is φ = 106540.

The previous prime is 213079. The next prime is 213091. The reversal of 213082 is 280312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 210681 + 2401 = 459^2 + 49^2 .

It is an unprimeable number.

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, 53269 + ... + 53272.

2213082 is an apocalyptic number.

213082 is a deficient number, since it is larger than the sum of its proper divisors (106544).

213082 is a wasteful number, since it uses less digits than its factorization.

213082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106543.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 213082 is about 461.6080588551. The cubic root of 213082 is about 59.7285889333.

Adding to 213082 its reverse (280312), we get a palindrome (493394).

The spelling of 213082 in words is "two hundred thirteen thousand, eighty-two".

Divisors: 1 2 106541 213082