Base | Representation |
---|---|
bin | 11111011111011010101001 |
3 | 120112101221010 |
4 | 133133122221 |
5 | 4103131040 |
6 | 452534133 |
7 | 130111323 |
oct | 37373251 |
9 | 16471833 |
10 | 8255145 |
11 | 4729238 |
12 | 2921349 |
13 | 1930602 |
14 | 114c613 |
15 | ad0e80 |
hex | 7df6a9 |
8255145 has 32 divisors (see below), whose sum is σ = 13999104. Its totient is φ = 4147200.
The previous prime is 8255131. The next prime is 8255147. The reversal of 8255145 is 5415528.
It is not a de Polignac number, because 8255145 - 24 = 8255129 is a prime.
It is not an unprimeable number, because it can be changed into a prime (8255147) 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, 18849 + ... + 19281.
It is an arithmetic number, because the mean of its divisors is an integer number (437472).
Almost surely, 28255145 is an apocalyptic number.
It is an amenable number.
8255145 is a deficient number, since it is larger than the sum of its proper divisors (5743959).
8255145 is a wasteful number, since it uses less digits than its factorization.
8255145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 513.
The product of its digits is 8000, while the sum is 30.
The square root of 8255145 is about 2873.1768132156. The cubic root of 8255145 is about 202.1039967062.
The spelling of 8255145 in words is "eight million, two hundred fifty-five thousand, one hundred forty-five".
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