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2842489 = 13415333
BaseRepresentation
bin1010110101111101111001
312100102011101
422311331321
51211424424
6140531401
733106066
oct12657571
95312141
102842489
111671671
12b50b61
13786a60
1453dc6d
153b2344
hex2b5f79

2842489 has 8 divisors (see below), whose sum is σ = 3136392. Its totient is φ = 2559360.

The previous prime is 2842487. The next prime is 2842517. The reversal of 2842489 is 9842482.

It can be written as a sum of positive squares in 4 ways, for example, as 218089 + 2624400 = 467^2 + 1620^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2842489 - 21 = 2842487 is a prime.

It is a Duffinian number.

2842489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2842487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2134 + ... + 3199.

It is an arithmetic number, because the mean of its divisors is an integer number (392049).

22842489 is an apocalyptic number.

It is an amenable number.

2842489 is a deficient number, since it is larger than the sum of its proper divisors (293903).

2842489 is a wasteful number, since it uses less digits than its factorization.

2842489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387.

The product of its digits is 36864, while the sum is 37.

The square root of 2842489 is about 1685.9682677915. The cubic root of 2842489 is about 141.6553335032.

Subtracting from 2842489 its product of digits (36864), we obtain a square (2805625 = 16752).

The spelling of 2842489 in words is "two million, eight hundred forty-two thousand, four hundred eighty-nine".

Divisors: 1 13 41 533 5333 69329 218653 2842489