Search a number
-
+
2842993 = 7693697
BaseRepresentation
bin1010110110000101110001
312100102212001
422312011301
51211433433
6140534001
733110416
oct12660561
95312761
102842993
111671a8a
12b51301
1378705a
1454010d
153b257d
hex2b6171

2842993 has 4 divisors (see below), whose sum is σ = 2847460. Its totient is φ = 2838528.

The previous prime is 2842991. The next prime is 2843003. The reversal of 2842993 is 3992482.

2842993 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 2 ways, for example, as 628849 + 2214144 = 793^2 + 1488^2 .

It is a cyclic number.

It is not a de Polignac number, because 2842993 - 21 = 2842991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2842991) 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, 1080 + ... + 2617.

It is an arithmetic number, because the mean of its divisors is an integer number (711865).

22842993 is an apocalyptic number.

It is an amenable number.

2842993 is a deficient number, since it is larger than the sum of its proper divisors (4467).

2842993 is an equidigital number, since it uses as much as digits as its factorization.

2842993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4466.

The product of its digits is 31104, while the sum is 37.

The square root of 2842993 is about 1686.1177301719. The cubic root of 2842993 is about 141.6637052822.

The spelling of 2842993 in words is "two million, eight hundred forty-two thousand, nine hundred ninety-three".

Divisors: 1 769 3697 2842993