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9007009 = 11818819
BaseRepresentation
bin100010010110…
…111110100001
3121221121021221
4202112332201
54301211014
6521015041
7136362334
oct42267641
917847257
109007009
1150a2110
123024481
131b348bb
1412a661b
15bcdb24
hex896fa1

9007009 has 4 divisors (see below), whose sum is σ = 9825840. Its totient is φ = 8188180.

The previous prime is 9007001. The next prime is 9007039.

9007009 is nontrivially palindromic in base 10.

9007009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is not a de Polignac number, because 9007009 - 23 = 9007001 is a prime.

It is a super-2 number, since 2×90070092 = 162252422252162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9007001) 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, 409399 + ... + 409420.

It is an arithmetic number, because the mean of its divisors is an integer number (2456460).

Almost surely, 29007009 is an apocalyptic number.

It is an amenable number.

9007009 is a deficient number, since it is larger than the sum of its proper divisors (818831).

9007009 is a wasteful number, since it uses less digits than its factorization.

9007009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818830.

The product of its (nonzero) digits is 567, while the sum is 25.

The square root of 9007009 is about 3001.1679393196. The cubic root of 9007009 is about 208.0623657292.

The spelling of 9007009 in words is "nine million, seven thousand, nine".

Divisors: 1 11 818819 9007009