21689939 is an odd 8-digits composite number following 21689938
and preceding 21689940 . In scientific notation, it is written as 2.1689939 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 21680400 positive integers (up to 21689939) that are relatively prime to 21689939.
21689939 has 4 divisors, whose sum is 21699480
The reverse of 21689939 is 93998612
Previous prime number is 5801
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-one million six hundred eighty-nine thousand nine hundred thirty-nine
Scientific notation
2.1689939 × 10^7
Engineering notation
2.1689939 × 10^6
Prime Factorization
5801 × 3739
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21689939
Product of the distinct prime numbers
The prime factorization of 21689939 is 5801 × 3739.
Since it has a total of 2 prime factors.
5 , 5 , 53 , 94 , 972 , 779 , 5797 , 8779 , 39040 , 27625 , 161670 , 213075 , 3831160 , 7252211 , 22407724 , 45370830 , 264770939 , 435801103 , 524612091 , 8180850035
n×2
43379878
n×3
65069817
n×4
86759756
n×5
108449695
n÷2
10844969.5
n÷3
7229979.6666667
n÷3
5422484.75
n÷5
4337987.8
n2
470453453823721
n3
1.0204106715776E+22
n4
2.2132645221467E+29
n5
4.8005572476226E+36
2 √n
4657.2458599477
3 √n
278.88133166708
4 √n
68.244017026753
5 √n
29.325921392752
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21689938
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21689939 can be divided by 4 positive divisors.
The sum of these divisors (counting 21689939) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010101111011001010011
3
Ternary
1111210222000002
4
Quaternary
1102233121103
5
Quinary
21023034224
6
Senary
2052520215
8
Octal
122573123
10
Decimal
21689939
12
Duodecimal
732006b
16
Hexadecimal
14af653
20
Vigesimal
6fb4gj
36
Base36
cww2b
md5
f396629504642f09c59135c4afe7197c
sha1
55db42b71fd11993ba846b6be144cecaf04b9d0e
sha256
37060f7ccc549201d569171fc5415311dd0369e6f6ad202788488f3b32777298
sha512
ed6b4086a84f0dfef1247554170b92f7699acd08e9201460215b9f75462e6eea51cd1dfe5348fd80352fc230fb3b7fefbbc78c2adadfdf05275de736b37d4b60
ripemd-160
d2bb23e518dd7f5b08693d52f177c690e0ec9359
Diameter
43379878
Circumference
136281906.03842
Area
1.4779731143885E+15
Volume
4.2742862259637E+22
Surface area
5.9118924575542E+15
Circumference
136281906.03842
Perimeter
86759756
Area
470453453823721
Diagonal
30674205.900845
Surface area
2822720722942326
Volume
1.0204106715776E+22
Space diagonal
37568076.36107
Perimeter
65069817
Area
2.0371232115474E+14
Altitude
18784038.180535
Surface area
2.0371232115474E+14
Volume
1.2025655091127E+21
Height
10224735.300282