Base | Representation |
---|---|
bin | 11110011101011110000001 |
3 | 120000200101200 |
4 | 132131132001 |
5 | 4021010100 |
6 | 443051413 |
7 | 124604646 |
oct | 36353601 |
9 | 16020350 |
10 | 7985025 |
11 | 45642a4 |
12 | 2810b69 |
13 | 1867689 |
14 | 10bbdcd |
15 | a7ae00 |
hex | 79d781 |
7985025 has 36 divisors (see below), whose sum is σ = 14933568. Its totient is φ = 4070880.
The previous prime is 7985023. The next prime is 7985039. The reversal of 7985025 is 5205897.
It is not a de Polignac number, because 7985025 - 21 = 7985023 is a prime.
It is not an unprimeable number, because it can be changed into a prime (7985023) by changing a digit.
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 35 ways as a sum of consecutive naturals, for example, 4404 + ... + 5946.
Almost surely, 27985025 is an apocalyptic number.
7985025 is a gapful number since it is divisible by the number (75) formed by its first and last digit.
It is an amenable number.
7985025 is a deficient number, since it is larger than the sum of its proper divisors (6948543).
7985025 is a wasteful number, since it uses less digits than its factorization.
7985025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1582 (or 1574 counting only the distinct ones).
The product of its (nonzero) digits is 25200, while the sum is 36.
The square root of 7985025 is about 2825.7786537519. The cubic root of 7985025 is about 199.8751303875.
The spelling of 7985025 in words is "seven million, nine hundred eighty-five thousand, twenty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •