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2143082 = 21071541
BaseRepresentation
bin1000001011001101101010
311000212202102
420023031222
51022034312
6113533402
724134024
oct10131552
94025672
102143082
111234147
12874262
135a05c6
143db014
152c4ec2
hex20b36a

2143082 has 4 divisors (see below), whose sum is σ = 3214626. Its totient is φ = 1071540.

The previous prime is 2143081. The next prime is 2143087. The reversal of 2143082 is 2803412.

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., 2070721 + 72361 = 1439^2 + 269^2 .

It is not an unprimeable number, because it can be changed into a prime (2143081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535769 + ... + 535772.

22143082 is an apocalyptic number.

2143082 is a deficient number, since it is larger than the sum of its proper divisors (1071544).

2143082 is a wasteful number, since it uses less digits than its factorization.

2143082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071543.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2143082 is about 1463.9269107438. The cubic root of 2143082 is about 128.9277082282.

Adding to 2143082 its reverse (2803412), we get a palindrome (4946494).

It can be divided in two parts, 21430 and 82, that added together give a palindrome (21512).

The spelling of 2143082 in words is "two million, one hundred forty-three thousand, eighty-two".

Divisors: 1 2 1071541 2143082