Base | Representation |
---|---|
bin | 11110110101001000000101 |
3 | 120012121022120 |
4 | 132311020011 |
5 | 4032110200 |
6 | 445120153 |
7 | 125460315 |
oct | 36651005 |
9 | 16177276 |
10 | 8081925 |
11 | 4620085 |
12 | 2859059 |
13 | 189c807 |
14 | 1105445 |
15 | a999a0 |
hex | 7b5205 |
8081925 has 24 divisors (see below), whose sum is σ = 13454496. Its totient is φ = 4280640.
The previous prime is 8081849. The next prime is 8081929. The reversal of 8081925 is 5291808.
It is a happy number.
It is not a de Polignac number, because 8081925 - 210 = 8080901 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8081929) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14502 + ... + 15048.
It is an arithmetic number, because the mean of its divisors is an integer number (560604).
Almost surely, 28081925 is an apocalyptic number.
It is an amenable number.
8081925 is a deficient number, since it is larger than the sum of its proper divisors (5372571).
8081925 is a wasteful number, since it uses less digits than its factorization.
8081925 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 757 (or 752 counting only the distinct ones).
The product of its (nonzero) digits is 5760, while the sum is 33.
The square root of 8081925 is about 2842.8726668636. The cubic root of 8081925 is about 200.6803910486.
The spelling of 8081925 in words is "eight million, eighty-one thousand, nine hundred twenty-five".
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