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7080005 = 55326717
BaseRepresentation
bin11011000000100001000101
3111022200221102
4123000201011
53303030010
6411425445
7114115262
oct33004105
914280842
107080005
113aa6349
122455285
13160b76a
14d24269
1594cba5
hex6c0845

7080005 has 8 divisors (see below), whose sum is σ = 8656632. Its totient is φ = 5556928.

The previous prime is 7080001. The next prime is 7080011. The reversal of 7080005 is 5000807.

It can be written as a sum of positive squares in 4 ways, for example, as 521284 + 6558721 = 722^2 + 2561^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7080005 - 22 = 7080001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7080001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13094 + ... + 13623.

It is an arithmetic number, because the mean of its divisors is an integer number (1082079).

Almost surely, 27080005 is an apocalyptic number.

It is an amenable number.

7080005 is a deficient number, since it is larger than the sum of its proper divisors (1576627).

7080005 is a wasteful number, since it uses less digits than its factorization.

7080005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26775.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 7080005 is about 2660.8278786874. The cubic root of 7080005 is about 192.0191405253.

The spelling of 7080005 in words is "seven million, eighty thousand, five".

Divisors: 1 5 53 265 26717 133585 1416001 7080005