Base | Representation |
---|---|
bin | 11110100010000110111001 |
3 | 120001122110101 |
4 | 132202012321 |
5 | 4022112100 |
6 | 443315401 |
7 | 125014231 |
oct | 36420671 |
9 | 16048411 |
10 | 8004025 |
11 | 45775a7 |
12 | 281bb61 |
13 | 1873213 |
14 | 10c4cc1 |
15 | a8186a |
hex | 7a21b9 |
8004025 has 24 divisors (see below), whose sum is σ = 10814040. Its totient is φ = 5852160.
The previous prime is 8004013. The next prime is 8004047. The reversal of 8004025 is 5204008.
It is a happy number.
It can be written as a sum of positive squares in 12 ways, for example, as 784 + 8003241 = 28^2 + 2829^2 .
It is not a de Polignac number, because 8004025 - 219 = 7479737 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 8003993 and 8004011.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15471 + ... + 15979.
It is an arithmetic number, because the mean of its divisors is an integer number (450585).
Almost surely, 28004025 is an apocalyptic number.
8004025 is a gapful number since it is divisible by the number (85) formed by its first and last digit.
It is an amenable number.
8004025 is a deficient number, since it is larger than the sum of its proper divisors (2810015).
8004025 is a wasteful number, since it uses less digits than its factorization.
8004025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 573 (or 568 counting only the distinct ones).
The product of its (nonzero) digits is 320, while the sum is 19.
The square root of 8004025 is about 2829.1385614706. The cubic root of 8004025 is about 200.0335360430.
It can be divided in two parts, 80040 and 25, that multiplied together give a triangular number (2001000 = T2000).
The spelling of 8004025 in words is "eight million, four thousand, twenty-five".
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