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7052009 = 19735797
BaseRepresentation
bin11010111001101011101001
3111021021112112
4122321223221
53301131014
6411052105
7113640536
oct32715351
914237475
107052009
113a87308
122441035
1315cbab3
14d17d8d
1594473e
hex6b9ae9

7052009 has 4 divisors (see below), whose sum is σ = 7088004. Its totient is φ = 7016016.

The previous prime is 7051987. The next prime is 7052011. The reversal of 7052009 is 9002507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9002507 = 37243311.

It can be written as a sum of positive squares in 2 ways, for example, as 4000000 + 3052009 = 2000^2 + 1747^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7052009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7052029) 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, 17702 + ... + 18095.

It is an arithmetic number, because the mean of its divisors is an integer number (1772001).

Almost surely, 27052009 is an apocalyptic number.

It is an amenable number.

7052009 is a deficient number, since it is larger than the sum of its proper divisors (35995).

7052009 is a wasteful number, since it uses less digits than its factorization.

7052009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35994.

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

The square root of 7052009 is about 2655.5618991091. The cubic root of 7052009 is about 191.7657099534.

The spelling of 7052009 in words is "seven million, fifty-two thousand, nine".

Divisors: 1 197 35797 7052009