21093885 is an odd 8-digits composite number following 21093884
and preceding 21093886 . In scientific notation, it is written as 2.1093885 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors.
There are 10575360 positive integers (up to 21093885) that are relatively prime to 21093885.
21093885 has 32 divisors, whose sum is 27885312
The reverse of 21093885 is 58839012
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million ninety-three thousand eight hundred eighty-five
Scientific notation
2.1093885 × 10^7
Engineering notation
2.1093885 × 10^6
Prime Factorization
27 × 5 × 41 × 37 × 103
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21093885
Product of the distinct prime numbers
The prime factorization of 21093885 is 27 × 5 × 41 × 37 × 103.
Since it has a total of 5 prime factors.
4 , 10 , 90 , 7 , 683 , 690 , 1699 , 8976 , 18281 , 94404 , 464317 , 791532 , 1723976 , 2263584 , 69556372 , 77945950 , 922216829 , 84847949 , 5207882412 , 9446314254
n×2
42187770
n×3
63281655
n×4
84375540
n×5
105469425
n÷2
10546942.5
n÷3
7031295
n÷3
5273471.25
n÷5
4218777
n2
444951984393225
n3
9.3857659893125E+21
n4
1.9798226841547E+29
n5
4.176215201995E+36
2 √n
4592.8079646334
3 √n
276.30295184181
4 √n
67.770258702719
5 √n
29.162940702824
1 , 5 , 27 , 37 , 41 , 103 , 135 , 185 , 205 , 515 , 999 , 1107 , 1517 , 2781 , 3811 , 4223 , 4995 , 5535 , 7585 , 13905 , 19055 , 21115 , 40959 , 102897 , 114021 , 156251 , 204795 , 514485 , 570105 , 781255 , 4218777 , 21093885
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21093884
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21093885 can be divided by 32 positive divisors.
The sum of these divisors (counting 21093885) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000011101110111111101
3
Ternary
1110200200101000
4
Quaternary
1100131313331
5
Quinary
20400001020
6
Senary
2032040513
8
Octal
120356775
10
Decimal
21093885
12
Duodecimal
7093139
16
Hexadecimal
141ddfd
20
Vigesimal
6bgee5
36
Base36
ck459
md5
3120d673586c093f00a36f6b17e30384
sha1
958d1bb69a8d0a84cb6c54d7f3d1931333f395f6
sha256
6466a4c495895a0324eda71ea4f6d99305cb97a13cd504a5568e2d1059575801
sha512
ba25585fc70186a7f86d3e8e753c3ffab5050fde4c0bbf3055571253c747b216533faeb9d377055579901debda0b209cce1e67c499bc2cb45cb1631fe699a380
ripemd-160
9356291a55765fc1725dbaf0d6d748cdb39dacbd
Diameter
42187770
Circumference
132536788.30334
Area
1.39785788537E+15
Volume
3.9315004640449E+22
Surface area
5.5914315414798E+15
Circumference
132536788.30334
Perimeter
84375540
Area
444951984393225
Diagonal
29831258.250138
Surface area
2669711906359350
Volume
9.3857659893125E+21
Space diagonal
36535680.549015
Perimeter
63281655
Area
1.9266986097441E+14
Altitude
18267840.274508
Surface area
1.9266986097441E+14
Volume
1.1061231296122E+21
Height
9943752.7500461