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8080085 = 513124309
BaseRepresentation
bin11110110100101011010101
3120012111210102
4132310223111
54032030320
6445103445
7125452046
oct36645325
916174712
108080085
114619762
122857b85
13189ba20
1411048cd
15a99175
hex7b4ad5

8080085 has 8 divisors (see below), whose sum is σ = 10442040. Its totient is φ = 5966784.

The previous prime is 8080081. The next prime is 8080139. The reversal of 8080085 is 5800808.

It can be written as a sum of positive squares in 4 ways, for example, as 20164 + 8059921 = 142^2 + 2839^2 .

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 8080085 - 22 = 8080081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8080081) 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, 62090 + ... + 62219.

It is an arithmetic number, because the mean of its divisors is an integer number (1305255).

Almost surely, 28080085 is an apocalyptic number.

It is an amenable number.

8080085 is a deficient number, since it is larger than the sum of its proper divisors (2361955).

8080085 is a wasteful number, since it uses less digits than its factorization.

8080085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124327.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 8080085 is about 2842.5490321189. The cubic root of 8080085 is about 200.6651603561.

The spelling of 8080085 in words is "eight million, eighty thousand, eighty-five".

Divisors: 1 5 13 65 124309 621545 1616017 8080085