Base | Representation |
---|---|
bin | 11001111110010010010101 |
3 | 110210220211000 |
4 | 121332102111 |
5 | 3220334400 |
6 | 401533513 |
7 | 111605340 |
oct | 31762225 |
9 | 13726730 |
10 | 6808725 |
11 | 3930550 |
12 | 2344299 |
13 | 1545141 |
14 | c93457 |
15 | 8e7600 |
hex | 67e495 |
6808725 has 96 divisors (see below), whose sum is σ = 15713280. Its totient is φ = 2808000.
The previous prime is 6808717. The next prime is 6808733. The reversal of 6808725 is 5278086.
It is an interprime number because it is at equal distance from previous prime (6808717) and next prime (6808733).
It is not a de Polignac number, because 6808725 - 23 = 6808717 is a prime.
It is a super-2 number, since 2×68087252 = 92717472251250, which contains 22 as substring.
6808725 is a lucky number.
It is a self number, because there is not a number n which added to its sum of digits gives 6808725.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51910 + ... + 52040.
It is an arithmetic number, because the mean of its divisors is an integer number (163680).
Almost surely, 26808725 is an apocalyptic number.
It is an amenable number.
6808725 is an abundant number, since it is smaller than the sum of its proper divisors (8904555).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6808725 is a wasteful number, since it uses less digits than its factorization.
6808725 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 168 (or 157 counting only the distinct ones).
The product of its (nonzero) digits is 26880, while the sum is 36.
The square root of 6808725 is about 2609.3533681738. The cubic root of 6808725 is about 189.5346413883.
The spelling of 6808725 in words is "six million, eight hundred eight thousand, seven hundred twenty-five".
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