Base | Representation |
---|---|
bin | 111100011100011… |
… | …0000100010101101 |
3 | 12020100022102122120 |
4 | 1320320300202231 |
5 | 13123201113223 |
6 | 533130103153 |
7 | 101154642432 |
oct | 17070604255 |
9 | 5210272576 |
10 | 2028144813 |
11 | 950920242 |
12 | 48727aab9 |
13 | 26424cab6 |
14 | 153503b89 |
15 | bd0c1be3 |
hex | 78e308ad |
2028144813 has 8 divisors (see below), whose sum is σ = 2708401248. Its totient is φ = 1349992464.
The previous prime is 2028144787. The next prime is 2028144821. The reversal of 2028144813 is 3184418202.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 2028144813 - 212 = 2028140717 is a prime.
It is a super-2 number, since 2×20281448132 = 8226742764997609938, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2028140813) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523770 + ... + 527627.
It is an arithmetic number, because the mean of its divisors is an integer number (338550156).
Almost surely, 22028144813 is an apocalyptic number.
It is an amenable number.
2028144813 is a deficient number, since it is larger than the sum of its proper divisors (680256435).
2028144813 is a wasteful number, since it uses less digits than its factorization.
2028144813 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1052043.
The product of its (nonzero) digits is 12288, while the sum is 33.
The square root of 2028144813 is about 45034.9288108686. The cubic root of 2028144813 is about 1265.8035821799.
The spelling of 2028144813 in words is "two billion, twenty-eight million, one hundred forty-four thousand, eight hundred thirteen".
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