Base | Representation |
---|---|
bin | 1010101110001111… |
… | …0010100001100101 |
3 | 21102121000002000102 |
4 | 2223203302201211 |
5 | 21343320122200 |
6 | 1153335353445 |
7 | 131220012104 |
oct | 25343624145 |
9 | 7377002012 |
10 | 2878285925 |
11 | 12477988a9 |
12 | 683b22885 |
13 | 36b40a388 |
14 | 1d43a203b |
15 | 11ca506d5 |
hex | ab8f2865 |
2878285925 has 12 divisors (see below), whose sum is σ = 3571038180. Its totient is φ = 2301361920.
The previous prime is 2878285919. The next prime is 2878286009. The reversal of 2878285925 is 5295828782.
2878285925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 6 ways, for example, as 129800449 + 2748485476 = 11393^2 + 52426^2 .
It is not a de Polignac number, because 2878285925 - 24 = 2878285909 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16091 + ... + 77559.
It is an arithmetic number, because the mean of its divisors is an integer number (297586515).
Almost surely, 22878285925 is an apocalyptic number.
2878285925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
2878285925 is a deficient number, since it is larger than the sum of its proper divisors (692752255).
2878285925 is a wasteful number, since it uses less digits than its factorization.
2878285925 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63352 (or 63347 counting only the distinct ones).
The product of its digits is 6451200, while the sum is 56.
The square root of 2878285925 is about 53649.6591321883. The cubic root of 2878285925 is about 1422.4750073599.
The spelling of 2878285925 in words is "two billion, eight hundred seventy-eight million, two hundred eighty-five thousand, nine hundred twenty-five".
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