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2812442 = 21406221
BaseRepresentation
bin1010101110101000011010
312021212221112
422232220122
51204444232
6140140322
732622353
oct12565032
95255845
102812442
111651036
12b376a2
13776189
14532d2a
153a84b2
hex2aea1a

2812442 has 4 divisors (see below), whose sum is σ = 4218666. Its totient is φ = 1406220.

The previous prime is 2812441. The next prime is 2812451. The reversal of 2812442 is 2442182.

It is a happy number.

2812442 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.

It can be written as a sum of positive squares in only one way, i.e., 2157961 + 654481 = 1469^2 + 809^2 .

It is not an unprimeable number, because it can be changed into a prime (2812441) 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 as a sum of consecutive naturals, namely, 703109 + ... + 703112.

22812442 is an apocalyptic number.

2812442 is a deficient number, since it is larger than the sum of its proper divisors (1406224).

2812442 is a wasteful number, since it uses less digits than its factorization.

2812442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406223.

The product of its digits is 1024, while the sum is 23.

The square root of 2812442 is about 1677.0336907767. The cubic root of 2812442 is about 141.1544340128.

The spelling of 2812442 in words is "two million, eight hundred twelve thousand, four hundred forty-two".

Divisors: 1 2 1406221 2812442