Search a number
-
+
11724049 = 13785577
BaseRepresentation
bin101100101110…
…010100010001
3211001122101001
4230232110101
511000132144
61055142001
7201436621
oct54562421
924048331
1011724049
1166884a7
123b14901
13257650c
1417b2881
151068bd4
hexb2e511

11724049 has 4 divisors (see below), whose sum is σ = 11809764. Its totient is φ = 11638336.

The previous prime is 11724001. The next prime is 11724127. The reversal of 11724049 is 94042711.

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 5313025 + 6411024 = 2305^2 + 2532^2 .

It is a cyclic number.

It is not a de Polignac number, because 11724049 - 211 = 11722001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11721049) 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, 42652 + ... + 42925.

It is an arithmetic number, because the mean of its divisors is an integer number (2952441).

Almost surely, 211724049 is an apocalyptic number.

It is an amenable number.

11724049 is a deficient number, since it is larger than the sum of its proper divisors (85715).

11724049 is an equidigital number, since it uses as much as digits as its factorization.

11724049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85714.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 11724049 is about 3424.0398654221. The cubic root of 11724049 is about 227.1743051122.

The spelling of 11724049 in words is "eleven million, seven hundred twenty-four thousand, forty-nine".

Divisors: 1 137 85577 11724049