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6530089 = 17093821
BaseRepresentation
bin11000111010010000101001
3110021202121011
4120322100221
53132430324
6351543521
7106335106
oct30722051
913252534
106530089
113760175
12222aba1
131478377
14c1daad
1588ec94
hex63a429

6530089 has 4 divisors (see below), whose sum is σ = 6535620. Its totient is φ = 6524560.

The previous prime is 6530087. The next prime is 6530107. The reversal of 6530089 is 9800356.

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 3667225 + 2862864 = 1915^2 + 1692^2 .

It is a cyclic number.

It is not a de Polignac number, because 6530089 - 21 = 6530087 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6530089.

It is not an unprimeable number, because it can be changed into a prime (6530087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202 + ... + 3619.

It is an arithmetic number, because the mean of its divisors is an integer number (1633905).

Almost surely, 26530089 is an apocalyptic number.

It is an amenable number.

6530089 is a deficient number, since it is larger than the sum of its proper divisors (5531).

6530089 is a wasteful number, since it uses less digits than its factorization.

6530089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5530.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 6530089 is about 2555.4038819725. The cubic root of 6530089 is about 186.9130826590.

The spelling of 6530089 in words is "six million, five hundred thirty thousand, eighty-nine".

Divisors: 1 1709 3821 6530089