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2449 = 3179
BaseRepresentation
bin100110010001
310100201
4212101
534244
615201
710066
oct4621
93321
102449
111927
121501
131165
14c6d
15ad4
hex991

2449 has 4 divisors (see below), whose sum is σ = 2560. Its totient is φ = 2340.

The previous prime is 2447. The next prime is 2459. The reversal of 2449 is 9442.

2449 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9442 = 24721.

It is a cyclic number.

It is not a de Polignac number, because 2449 - 21 = 2447 is a prime.

It is a d-powerful number, because it can be written as 211 + 43 + 44 + 92 .

It is a Duffinian number.

It is a plaindrome in base 10.

It is a nialpdrome in base 9 and base 16.

It is not an unprimeable number, because it can be changed into a prime (2441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9 + ... + 70.

It is an arithmetic number, because the mean of its divisors is an integer number (640).

22449 is an apocalyptic number.

It is an amenable number.

2449 is a deficient number, since it is larger than the sum of its proper divisors (111).

2449 is an equidigital number, since it uses as much as digits as its factorization.

2449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110.

The product of its digits is 288, while the sum is 19.

The square root of 2449 is about 49.4873721266. The cubic root of 2449 is about 13.4791631000.

It can be divided in two parts, 244 and 9, that added together give a triangular number (253 = T22).

The spelling of 2449 in words is "two thousand, four hundred forty-nine".

Divisors: 1 31 79 2449