2021855689 is an odd 10-digits composite number following 2021855688
and preceding 2021855690 . In scientific notation, it is written as 2.021855689 × 10^9.
The sum of its digits is 46. It has a total of 5 prime factors and 10 positive divisors.
There are 1733017104 positive integers (up to 2021855689) that are relatively prime to 2021855689.
2021855689 has 10 divisors, whose sum is 2358694090
The reverse of 2021855689 is 9865581202
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 46
Digital Root 1
Name
two billion twenty-one million eight hundred fifty-five thousand six hundred eighty-nine
Scientific notation
2.021855689 × 10^9
Engineering notation
2.021855689 × 10^9
Prime Factorization
7 × 7 × 7 × 7 × 842089
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5894623
Product of the distinct prime numbers
The prime factorization of 2021855689 is 7 × 7 × 7 × 7 × 842089.
Since it has a total of 5 prime factors.
2 , 9 , 32 , 39 , 774 , 603 , 9690 , 3805 , 54802 , 56094 , 491541 , 894427 , 1790160 , 3815913 , 17587858 , 57585874 , 646240065 , 979328738 , 7143833553 , 6434290228
n×2
4043711378
n×3
6065567067
n×4
8087422756
n×5
10109278445
n÷2
1010927844.5
n÷3
673951896.33333
n÷3
505463922.25
n÷5
404371137.8
n2
4087900427141664721
n3
8.2651447346819E+27
n4
1.6710929902225E+37
n5
3.3787088691294E+46
2 √n
44965.04963858
3 √n
1264.4938403161
4 √n
212.04963956249
5 √n
72.635684049844
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2021855688
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2021855689 can be divided by 10 positive divisors.
The sum of these divisors (counting 2021855689) is 1, the average is 0.1.
Base
System
Value
2
Binary
1111000100000110001000111001001
3
Ternary
12012220110220121001
4
Quaternary
1320200301013021
5
Quinary
13120043340224
6
Senary
532343215001
8
Octal
17040610711
10
Decimal
2021855689
12
Duodecimal
485147461
16
Hexadecimal
788311c9
20
Vigesimal
1bbgbj49
36
Base36
xfrdu1
md5
9e2f09e6df40ade4e7879a5a1179f88c
sha1
2a2619b80b230f6e3284352d3cc7e00f06d14b32
sha256
2f256e077253d26e35eb5f42cd6429dc3781a86eefa8b3fa475b77988565479b
sha512
08b1ef935ef396bea5a0f143226a3d4e009864049bcc179fa26b76ae9272a91afd9a08fdf91b639f5ff0ff605e5bf4a8b6f47893f91719cf9cb17c4bfda8cbb3
ripemd-160
5345a0edd6e4a41cfd1cb5447604d6e00cdf776e
Diameter
4043711378
Circumference
12703693958.362
Area
1.2842517950515E+19
Volume
3.4620957305777E+28
Surface area
5.1370071802059E+19
Circumference
12703693958.362
Perimeter
8087422756
Area
4087900427141664721
Diagonal
2859335736.545
Surface area
2.452740256285E+19
Volume
8.2651447346819E+27
Space diagonal
3501956778.9202
Perimeter
6065567067
Area
1.770112809023E+18
Altitude
1750978389.4601
Surface area
1.770112809023E+18
Volume
9.7405664823031E+26
Height
953111912.18167