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2143079 = 10212099
BaseRepresentation
bin1000001011001101100111
311000212202022
420023031213
51022034304
6113533355
724134021
oct10131547
94025668
102143079
111234144
1287425b
135a05c3
143db011
152c4ebe
hex20b367

2143079 has 4 divisors (see below), whose sum is σ = 2146200. Its totient is φ = 2139960.

The previous prime is 2143073. The next prime is 2143081. The reversal of 2143079 is 9703412.

2143079 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2143079 - 28 = 2142823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29 + ... + 2070.

It is an arithmetic number, because the mean of its divisors is an integer number (536550).

22143079 is an apocalyptic number.

2143079 is a deficient number, since it is larger than the sum of its proper divisors (3121).

2143079 is a wasteful number, since it uses less digits than its factorization.

2143079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2143079 is about 1463.9258861022. The cubic root of 2143079 is about 128.9276480682.

The spelling of 2143079 in words is "two million, one hundred forty-three thousand, seventy-nine".

Divisors: 1 1021 2099 2143079