Base | Representation |
---|---|
bin | 11110110110100110110001 |
3 | 120012220122000 |
4 | 132312212301 |
5 | 4032303420 |
6 | 445204213 |
7 | 125514063 |
oct | 36664661 |
9 | 16186560 |
10 | 8087985 |
11 | 4624694 |
12 | 2860669 |
13 | 18a24b9 |
14 | 1107733 |
15 | a9b690 |
hex | 7b69b1 |
8087985 has 32 divisors (see below), whose sum is σ = 14501760. Its totient is φ = 4276800.
The previous prime is 8087983. The next prime is 8088001. The reversal of 8087985 is 5897808.
It is not a de Polignac number, because 8087985 - 21 = 8087983 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a self number, because there is not a number n which added to its sum of digits gives 8087985.
It is not an unprimeable number, because it can be changed into a prime (8087983) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24270 + ... + 24600.
It is an arithmetic number, because the mean of its divisors is an integer number (453180).
Almost surely, 28087985 is an apocalyptic number.
It is an amenable number.
8087985 is a deficient number, since it is larger than the sum of its proper divisors (6413775).
8087985 is a wasteful number, since it uses less digits than its factorization.
8087985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 526 (or 520 counting only the distinct ones).
The product of its (nonzero) digits is 161280, while the sum is 45.
The square root of 8087985 is about 2843.9382904697. The cubic root of 8087985 is about 200.7305366653.
The spelling of 8087985 in words is "eight million, eighty-seven thousand, nine hundred eighty-five".
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