Search a number
-
+
5720009 = 22372557
BaseRepresentation
bin10101110100011111001001
3101202121101012
4111310133021
52431020014
6322333305
766422261
oct25643711
911677335
105720009
113257589
121aba235
131253729
14a8c7a1
1577ec3e
hex5747c9

5720009 has 4 divisors (see below), whose sum is σ = 5724804. Its totient is φ = 5715216.

The previous prime is 5719963. The next prime is 5720017. The reversal of 5720009 is 9000275.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3553225 + 2166784 = 1885^2 + 1472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5720009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5720809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 959 + ... + 3515.

It is an arithmetic number, because the mean of its divisors is an integer number (1431201).

Almost surely, 25720009 is an apocalyptic number.

It is an amenable number.

5720009 is a deficient number, since it is larger than the sum of its proper divisors (4795).

5720009 is a wasteful number, since it uses less digits than its factorization.

5720009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4794.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 5720009 is about 2391.6540301641. The cubic root of 5720009 is about 178.8403745321.

The spelling of 5720009 in words is "five million, seven hundred twenty thousand, nine".

Divisors: 1 2237 2557 5720009