21087716 is an even 8-digits composite number following 21087715
and preceding 21087717 . In scientific notation, it is written as 2.1087716 × 10^7.
The sum of its digits is 32. It has a total of 5 prime factors and 24 positive divisors.
There are 9505440 positive integers (up to 21087716) that are relatively prime to 21087716.
21087716 has 24 divisors, whose sum is 40670784
The reverse of 21087716 is 61778012
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million eighty-seven thousand seven hundred sixteen
Scientific notation
2.1087716 × 10^7
Engineering notation
2.1087716 × 10^6
Prime Factorization
2 × 2 × 13 × 43 × 9431
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10543858
Product of the distinct prime numbers
The prime factorization of 21087716 is 2 × 2 × 13 × 43 × 9431.
Since it has a total of 5 prime factors.
8 , 6 , 9 , 47 , 357 , 665 , 2149 , 5419 , 31524 , 49229 , 238332 , 485427 , 9464427 , 2333147 , 33064824 , 79021903 , 785277135 , 777580234 , 4779522376 , 6710083828
n×2
42175432
n×3
63263148
n×4
84350864
n×5
105438580
n÷2
10543858
n÷3
7029238.6666667
n÷3
5271929
n÷5
4217543.2
n2
444691766096656
n3
9.3775336709847E+21
n4
1.9775076683416E+29
n5
4.170112009781E+36
2 √n
4592.1363220183
3 √n
276.27601387533
4 √n
67.765303231214
5 √n
29.161234737037
1 , 2 , 4 , 13 , 26 , 43 , 52 , 86 , 172 , 559 , 1118 , 2236 , 9431 , 18862 , 37724 , 122603 , 245206 , 405533 , 490412 , 811066 , 1622132 , 5271929 , 10543858 , 21087716
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21087715
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21087716 can be divided by 24 positive divisors.
The sum of these divisors (counting 21087716) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000011100010111100100
3
Ternary
1110200100220112
4
Quaternary
1100130113210
5
Quinary
20344301331
6
Senary
2031552152
8
Octal
120342744
10
Decimal
21087716
12
Duodecimal
708b658
16
Hexadecimal
141c5e4
20
Vigesimal
6bfj5g
36
Base36
cjzdw
md5
0891df2254b8874741cc62431acc44e6
sha1
2dfd2e19e401142f1145edaae4887bf0f2918fa9
sha256
1bb8162ffdb35d81dab85aff078767077837dbdee9b1c290d85174e3595c4347
sha512
0d5137eb74fa4b3c3d60f1d1f223e8256d55d1f5f16ea38239cdfcdb240e5779a4c4a9de806e3143de4dac441e1a718000af0bfbf6725903301159cbb775c10c
ripemd-160
82e01a3abea8c54f76422b999910968f7fac0de3
Diameter
42175432
Circumference
132498027.33318
Area
1.3970403854811E+15
Volume
3.9280521186075E+22
Surface area
5.5881615419245E+15
Circumference
132498027.33318
Perimeter
84350864
Area
444691766096656
Diagonal
29822533.966672
Surface area
2668150596579936
Volume
9.3775336709847E+21
Space diagonal
36524995.527583
Perimeter
63263148
Area
1.9255718314674E+14
Altitude
18262497.763792
Surface area
1.9255718314674E+14
Volume
1.1051529415931E+21
Height
9940844.6555574