Base | Representation |
---|---|
bin | 1010111001000010101000 |
3 | 12101001102201 |
4 | 22321002220 |
5 | 1212330310 |
6 | 141105544 |
7 | 33160564 |
oct | 12710250 |
9 | 5331381 |
10 | 2855080 |
11 | 1680078 |
12 | b582b4 |
13 | 78c6c7 |
14 | 5446a4 |
15 | 3b5e3a |
hex | 2b90a8 |
2855080 has 32 divisors (see below), whose sum is σ = 6483240. Its totient is φ = 1131520.
The previous prime is 2855077. The next prime is 2855089. The reversal of 2855080 is 805582.
It can be written as a sum of positive squares in 4 ways, for example, as 2125764 + 729316 = 1458^2 + 854^2 .
It is not an unprimeable number, because it can be changed into a prime (2855089) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5220 + ... + 5740.
22855080 is an apocalyptic number.
2855080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2855080 is an abundant number, since it is smaller than the sum of its proper divisors (3628160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2855080 is a wasteful number, since it uses less digits than its factorization.
2855080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 669 (or 665 counting only the distinct ones).
The product of its (nonzero) digits is 3200, while the sum is 28.
The square root of 2855080 is about 1689.6981979040. The cubic root of 2855080 is about 141.8641827741.
The spelling of 2855080 in words is "two million, eight hundred fifty-five thousand, eighty".
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