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8085505 = 54337607
BaseRepresentation
bin11110110110000000000001
3120012210020011
4132312000001
54032214010
6445144521
7125503621
oct36660001
916183204
108085505
11462283a
12285b141
1318a132c
141106881
15a9aa8a
hex7b6001

8085505 has 8 divisors (see below), whose sum is σ = 9928512. Its totient is φ = 6317808.

The previous prime is 8085503. The next prime is 8085509. The reversal of 8085505 is 5055808.

It is a happy number.

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 8085505 - 21 = 8085503 is a prime.

It is a super-2 number, since 2×80855052 = 130750782210050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8085503) 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, 18589 + ... + 19018.

It is an arithmetic number, because the mean of its divisors is an integer number (1241064).

It is a Proth number, since it is equal to 987 ⋅ 213 + 1 and 987 < 213.

Almost surely, 28085505 is an apocalyptic number.

It is an amenable number.

8085505 is a deficient number, since it is larger than the sum of its proper divisors (1843007).

8085505 is a wasteful number, since it uses less digits than its factorization.

8085505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37655.

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 8085505 is about 2843.5022419545. The cubic root of 8085505 is about 200.7100180557.

The spelling of 8085505 in words is "eight million, eighty-five thousand, five hundred five".

Divisors: 1 5 43 215 37607 188035 1617101 8085505