Base | Representation |
---|---|
bin | 1000101100101010010000 |
3 | 11021211200102 |
4 | 20230222100 |
5 | 1040430310 |
6 | 120511532 |
7 | 25244315 |
oct | 10545220 |
9 | 4254612 |
10 | 2280080 |
11 | 1318070 |
12 | 91b5a8 |
13 | 61aa7a |
14 | 434d0c |
15 | 3008a5 |
hex | 22ca90 |
2280080 has 40 divisors (see below), whose sum is σ = 5785344. Its totient is φ = 828800.
The previous prime is 2280079. The next prime is 2280097. The reversal of 2280080 is 800822.
It is a tau number, because it is divible by the number of its divisors (40).
It is a Harshad number since it is a multiple of its sum of digits (20).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416 + ... + 2175.
22280080 is an apocalyptic number.
2280080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2280080 is an abundant number, since it is smaller than the sum of its proper divisors (3505264).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2280080 is a wasteful number, since it uses less digits than its factorization.
2280080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2615 (or 2609 counting only the distinct ones).
The product of its (nonzero) digits is 256, while the sum is 20.
The square root of 2280080 is about 1509.9933774689. The cubic root of 2280080 is about 131.6184266656.
Adding to 2280080 its sum of digits (20), we get a square (2280100 = 15102).
It can be divided in two parts, 2 and 280080, that added together give a palindrome (280082).
The spelling of 2280080 in words is "two million, two hundred eighty thousand, eighty".
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