21689969 is an odd 8-digits composite number following 21689968
and preceding 21689970 . In scientific notation, it is written as 2.1689969 × 10^7.
The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors.
There are 18524016 positive integers (up to 21689969) that are relatively prime to 21689969.
21689969 has 8 divisors, whose sum is 24878400
The reverse of 21689969 is 96998612
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
twenty-one million six hundred eighty-nine thousand nine hundred sixty-nine
Scientific notation
2.1689969 × 10^7
Engineering notation
2.1689969 × 10^6
Prime Factorization
7 × 283 × 10949
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21689969
Product of the distinct prime numbers
The prime factorization of 21689969 is 7 × 283 × 10949.
Since it has a total of 3 prime factors.
6 , 4 , 84 , 97 , 743 , 448 , 8507 , 3278 , 56084 , 33696 , 896497 , 447743 , 1798611 , 6689351 , 37485906 , 2076300 , 899946915 , 834586066 , 3472912117 , 3805427459
n×2
43379938
n×3
65069907
n×4
86759876
n×5
108449845
n÷2
10844984.5
n÷3
7229989.6666667
n÷3
5422492.25
n÷5
4337993.8
n2
470454755220961
n3
1.0204149056645E+22
n4
2.2132767671001E+29
n5
4.8005904466822E+36
2 √n
4657.2490807342
3 √n
278.88146024338
4 √n
68.244040624323
5 √n
29.325929505058
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
-21689968
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 21689969 can be divided by 8 positive divisors.
The sum of these divisors (counting 21689969) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101111011001110001
3
Ternary
1111210222001012
4
Quaternary
1102233121301
5
Quinary
21023034334
6
Senary
2052520305
8
Octal
122573161
10
Decimal
21689969
12
Duodecimal
7320095
16
Hexadecimal
14af671
20
Vigesimal
6fb4i9
36
Base36
cww35
md5
09a0d01aea2d34c39c88eaad05aea138
sha1
5ab32621768cbbe4887603f8c1381af8d515b6d9
sha256
9354a06fed17a0b44fad1e13757fc39070c4ed7107de2de3eb77efeee4f796e3
sha512
954d9410a5abc819c9ccc2fa4d56d471438b4317b5c9eb934d72da3a5ab79371d381bff9675dab4ca3d79648b94b7219069a05dbd41c25506fea234c98718d65
ripemd-160
965f40ded61540868c5208f3f240ac8cb4e1b548
Diameter
43379938
Circumference
136282094.53398
Area
1.4779772028486E+15
Volume
4.2743039616656E+22
Surface area
5.9119088113942E+15
Circumference
136282094.53398
Perimeter
86759876
Area
470454755220961
Diagonal
30674248.327252
Surface area
2822728531325766
Volume
1.0204149056645E+22
Space diagonal
37568128.322594
Perimeter
65069907
Area
2.0371288467627E+14
Altitude
18784064.161297
Surface area
2.0371288467627E+14
Volume
1.202570499032E+21
Height
10224749.442417