21689870 is an even 8-digits composite number following 21689869
and preceding 21689871 . In scientific notation, it is written as 2.1689870 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 8675944 positive integers (up to 21689870) that are relatively prime to 21689870.
21689870 has 8 divisors, whose sum is 39041784
The reverse of 21689870 is 07898612
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million six hundred eighty-nine thousand eight hundred seventy
Scientific notation
2.1689870 × 10^7
Engineering notation
2.1689870 × 10^6
Prime Factorization
2 × 5 × 2168987
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21689870
Product of the distinct prime numbers
The prime factorization of 21689870 is 2 × 5 × 2168987.
Since it has a total of 3 prime factors.
5 , 9 , 7 , 53 , 883 , 796 , 7669 , 9417 , 85861 , 44722 , 300206 , 690594 , 1305453 , 2375317 , 49664571 , 96933817 , 881279549 , 597319208 , 5897089704 , 6882629740
n×2
43379740
n×3
65069610
n×4
86759480
n×5
108449350
n÷2
10844935
n÷3
7229956.6666667
n÷3
5422467.5
n÷5
4337974
n2
470450460616900
n3
1.0204009332221E+22
n4
2.2132363589465E+29
n5
4.8004808904824E+36
2 √n
4657.2384521302
3 √n
278.88103594115
4 √n
68.243962752248
5 √n
29.325902734413
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
-21689869
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 21689870 can be divided by 8 positive divisors.
The sum of these divisors (counting 21689870) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101111011000001110
3
Ternary
1111210221220112
4
Quaternary
1102233120032
5
Quinary
21023033440
6
Senary
2052520022
8
Octal
122573016
10
Decimal
21689870
12
Duodecimal
7320012
16
Hexadecimal
14af60e
20
Vigesimal
6fb4da
36
Base36
cww0e
md5
7d01f3d8aa2e42ff848476affc3248ef
sha1
1880fe3008d1090aab1bbc7a97fdaeb40db2c024
sha256
f5c7fe2afa2289ef510b429c0e5fbd5d26e11f3b50bbb75bb218c8b3ab53f79f
sha512
3ab7445420f8da31410ff1e33ae13f4ab2bd957e94c1a5432202ebf66ba39850d86d9ef13037d9d8acfb7370ada4762cc111f030679aac653fca6c6a7908f90a
ripemd-160
50228a5aafd16c32bf3a18ec7623eca7b6874b06
Diameter
43379740
Circumference
136281472.49864
Area
1.477963710952E+15
Volume
4.2742454340355E+22
Surface area
5.9118548438079E+15
Circumference
136281472.49864
Perimeter
86759480
Area
470450460616900
Diagonal
30674108.320109
Surface area
2822702763701400
Volume
1.0204009332221E+22
Space diagonal
37567956.849564
Perimeter
65069610
Area
2.0371102505816E+14
Altitude
18783978.424782
Surface area
2.0371102505816E+14
Volume
1.2025540323507E+21
Height
10224702.77337