Base | Representation |
---|---|
bin | 1000101100110101101111 |
3 | 11021212200122 |
4 | 20230311233 |
5 | 1040441230 |
6 | 120515155 |
7 | 25246415 |
oct | 10546557 |
9 | 4255618 |
10 | 2280815 |
11 | 1318679 |
12 | 91babb |
13 | 61b1c4 |
14 | 4352b5 |
15 | 300be5 |
hex | 22cd6f |
2280815 has 8 divisors (see below), whose sum is σ = 2747520. Its totient is φ = 1817632.
The previous prime is 2280767. The next prime is 2280823. The reversal of 2280815 is 5180822.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 2280815 - 28 = 2280559 is a prime.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 866 + ... + 2304.
It is an arithmetic number, because the mean of its divisors is an integer number (343440).
22280815 is an apocalyptic number.
2280815 is a deficient number, since it is larger than the sum of its proper divisors (466705).
2280815 is a wasteful number, since it uses less digits than its factorization.
2280815 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1761.
The product of its (nonzero) digits is 1280, while the sum is 26.
The square root of 2280815 is about 1510.2367364092. The cubic root of 2280815 is about 131.6325678581.
The spelling of 2280815 in words is "two million, two hundred eighty thousand, eight hundred fifteen".
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