Base | Representation |
---|---|
bin | 1010011100110010… |
… | …0010001011100000 |
3 | 21020111020212110111 |
4 | 2213030202023200 |
5 | 21221100041200 |
6 | 1142202341104 |
7 | 126340536064 |
oct | 24714421340 |
9 | 7214225414 |
10 | 2805080800 |
11 | 120a4387a5 |
12 | 6634ba794 |
13 | 3591b8a32 |
14 | 1c8787aa4 |
15 | 1163e00ba |
hex | a73222e0 |
2805080800 has 36 divisors (see below), whose sum is σ = 6847905456. Its totient is φ = 1122032000.
The previous prime is 2805080737. The next prime is 2805080807. The reversal of 2805080800 is 80805082.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2805080807) 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 5 ways as a sum of consecutive naturals, for example, 1752376 + ... + 1753975.
It is an arithmetic number, because the mean of its divisors is an integer number (190219596).
Almost surely, 22805080800 is an apocalyptic number.
2805080800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2805080800 is an abundant number, since it is smaller than the sum of its proper divisors (4042824656).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2805080800 is a wasteful number, since it uses less digits than its factorization.
2805080800 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3506371 (or 3506358 counting only the distinct ones).
The product of its (nonzero) digits is 5120, while the sum is 31.
The square root of 2805080800 is about 52963.0135094294. The cubic root of 2805080800 is about 1410.3117530735.
Adding to 2805080800 its reverse (80805082), we get a palindrome (2885885882).
The spelling of 2805080800 in words is "two billion, eight hundred five million, eighty thousand, eight hundred".
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