Base | Representation |
---|---|
bin | 1010011101011110… |
… | …1100001100100100 |
3 | 21020200202110021110 |
4 | 2213113230030210 |
5 | 21222322133122 |
6 | 1142345145020 |
7 | 126404436462 |
oct | 24727541444 |
9 | 7220673243 |
10 | 2808005412 |
11 | 1211056033 |
12 | 66448b170 |
13 | 3599a0c84 |
14 | 1c8d09832 |
15 | 1167bb90c |
hex | a75ec324 |
2808005412 has 48 divisors (see below), whose sum is σ = 6785759232. Its totient is φ = 903171360.
The previous prime is 2808005407. The next prime is 2808005423. The reversal of 2808005412 is 2145008082.
2808005412 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.
It is a self number, because there is not a number n which added to its sum of digits gives 2808005412.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4983 + ... + 75105.
It is an arithmetic number, because the mean of its divisors is an integer number (141369984).
Almost surely, 22808005412 is an apocalyptic number.
It is an amenable number.
2808005412 is an abundant number, since it is smaller than the sum of its proper divisors (3977753820).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2808005412 is a wasteful number, since it uses less digits than its factorization.
2808005412 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 70248 (or 70246 counting only the distinct ones).
The product of its (nonzero) digits is 5120, while the sum is 30.
The square root of 2808005412 is about 52990.6162636367. The cubic root of 2808005412 is about 1410.8017190011.
The spelling of 2808005412 in words is "two billion, eight hundred eight million, five thousand, four hundred twelve".
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