21720171 is an odd 8-digits composite number following 21720170
and preceding 21720172 . In scientific notation, it is written as 2.1720171 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 13163720 positive integers (up to 21720171) that are relatively prime to 21720171.
21720171 has 8 divisors, whose sum is 31593024
The reverse of 21720171 is 17102712
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million seven hundred twenty thousand one hundred seventy-one
Scientific notation
2.1720171 × 10^7
Engineering notation
2.1720171 × 10^6
Prime Factorization
11 × 3 × 658187
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21720171
Product of the distinct prime numbers
The prime factorization of 21720171 is 11 × 3 × 658187.
Since it has a total of 3 prime factors.
9 , 3 , 65 , 56 , 834 , 785 , 4070 , 473 , 80998 , 40776 , 944163 , 282493 , 9313944 , 8780541 , 59811408 , 8054426 , 628786335 , 131786983 , 3726494767 , 8823243340
n×2
43440342
n×3
65160513
n×4
86880684
n×5
108600855
n÷2
10860085.5
n÷3
7240057
n÷3
5430042.75
n÷5
4344034.2
n2
471765828269241
n3
1.0246834461965E+22
n4
2.2256299672256E+29
n5
4.8341063470865E+36
2 √n
4660.4904248373
3 √n
279.01084219373
4 √n
68.267784677967
5 √n
29.334091884818
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
-21720170
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 21720171 can be divided by 8 positive divisors.
The sum of these divisors (counting 21720171) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010110110110001101011
3
Ternary
1111212111110210
4
Quaternary
1102312301223
5
Quinary
21030021141
6
Senary
2053312203
8
Octal
122666153
10
Decimal
21720171
12
Duodecimal
7335663
16
Hexadecimal
14b6c6b
20
Vigesimal
6ff08b
36
Base36
cxje3
md5
59c8d6e18b97ace477f1f1f5796f45ab
sha1
f42cc5439409e84dd2d6e4772aba5ab9e6bb9e50
sha256
8e10cf4ed3529224672b42d32465d3f6660765abf89c79335c88361772e89a61
sha512
c471e7f458eb675a4ce2bec7b2599ceac176bf87b6dc7e532e3a0dd325a4e5c82e80baa26ad937a83a84a4d88578b1bf672b13c9f380f7a6cb1366f3a6c57fd3
ripemd-160
cc8308f47336efc302786bf73968cc11fdbdb65d
Diameter
43440342
Circumference
136471859.29663
Area
1.4820960603054E+15
Volume
4.2921839824345E+22
Surface area
5.9283842412214E+15
Circumference
136471859.29663
Perimeter
86880684
Area
471765828269241
Diagonal
30716960.405263
Surface area
2830594969615446
Volume
1.0246834461965E+22
Space diagonal
37620439.721084
Perimeter
65160513
Area
2.0428059595928E+14
Altitude
18810219.860542
Surface area
2.0428059595928E+14
Volume
1.2076010222919E+21
Height
10238986.801754