21087835 is an odd 8-digits composite number following 21087834
and preceding 21087836 . In scientific notation, it is written as 2.1087835 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 16772064 positive integers (up to 21087835) that are relatively prime to 21087835.
21087835 has 8 divisors, whose sum is 25452720
The reverse of 21087835 is 53878012
Previous prime number is 173
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million eighty-seven thousand eight hundred thirty-five
Scientific notation
2.1087835 × 10^7
Engineering notation
2.1087835 × 10^6
Prime Factorization
5 × 173 × 24379
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21087835
Product of the distinct prime numbers
The prime factorization of 21087835 is 5 × 173 × 24379.
Since it has a total of 3 prime factors.
4 , 9 , 16 , 4 , 440 , 998 , 9014 , 6305 , 72282 , 49117 , 146364 , 964952 , 2857911 , 9124522 , 64957759 , 53550769 , 274189612 , 938727042 , 6497522104 , 3870072243
n×2
42175670
n×3
63263505
n×4
84351340
n×5
105439175
n÷2
10543917.5
n÷3
7029278.3333333
n÷3
5271958.75
n÷5
4217567
n2
444696784987225
n3
9.3776924268411E+21
n4
1.9775523057797E+29
n5
4.1702296728153E+36
2 √n
4592.1492789325
3 √n
276.27653355835
4 √n
67.765398832535
5 √n
29.16126764889
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21087834
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21087835 can be divided by 8 positive divisors.
The sum of these divisors (counting 21087835) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011100011001011011
3
Ternary
1110200101001221
4
Quaternary
1100130121123
5
Quinary
20344302320
6
Senary
2031552511
8
Octal
120343133
10
Decimal
21087835
12
Duodecimal
708b737
16
Hexadecimal
141c65b
20
Vigesimal
6bfjbf
36
Base36
cjzh7
md5
8c1fdf1a5797f4bcd150223299728f4a
sha1
6f3e0855ff931ef108ebc6ddd56cdb8ad92d15fa
sha256
42e69e57e44ac2f0f390cced8da75cdacb4e63cdbee493cd0fda7ab1524da299
sha512
97669e9c2eb79cd2cc7dd38c634bc101bb088e1f78a7888117d5f10dc7c245940fc0b52d52db31f05a435e49eddf1ecf79841265d231ec040963d35389dbc381
ripemd-160
ec98c0dea6f1ddb63696c3b10234641e7be0b94e
Diameter
42175670
Circumference
132498775.03223
Area
1.3970561527909E+15
Volume
3.9281186181051E+22
Surface area
5.5882246111635E+15
Circumference
132498775.03223
Perimeter
84351340
Area
444696784987225
Diagonal
29822702.258086
Surface area
2668180709923350
Volume
9.3776924268411E+21
Space diagonal
36525201.641629
Perimeter
63263505
Area
1.925593563901E+14
Altitude
18262600.820815
Surface area
1.925593563901E+14
Volume
1.1051716511502E+21
Height
9940900.7526953