21689993 is an odd 8-digits composite number following 21689992
and preceding 21689994 . In scientific notation, it is written as 2.1689993 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 19681488 positive integers (up to 21689993) that are relatively prime to 21689993.
21689993 has 8 divisors, whose sum is 23755200
The reverse of 21689993 is 39998612
Previous prime number is 59
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 ninety-three
Scientific notation
2.1689993 × 10^7
Engineering notation
2.1689993 × 10^6
Prime Factorization
13 × 59 × 28279
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21689993
Product of the distinct prime numbers
The prime factorization of 21689993 is 13 × 59 × 28279.
Since it has a total of 3 prime factors.
2 , 5 , 84 , 14 , 909 , 493 , 1148 , 6184 , 50727 , 71978 , 333706 , 791986 , 8826572 , 2868788 , 57775622 , 13432795 , 937522616 , 836808271 , 7460974816 , 544966859
n×2
43379986
n×3
65069979
n×4
86759972
n×5
108449965
n÷2
10844996.5
n÷3
7229997.6666667
n÷3
5422498.25
n÷5
4337998.6
n2
470455796340049
n3
1.0204182929425E+22
n4
2.2132865630995E+29
n5
4.8006170060622E+36
2 √n
4657.2516573619
3 √n
278.88156310433
4 √n
68.244059502362
5 √n
29.325935994897
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
-21689992
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 21689993 can be divided by 8 positive divisors.
The sum of these divisors (counting 21689993) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101111011010001001
3
Ternary
1111210222002002
4
Quaternary
1102233122021
5
Quinary
21023034433
6
Senary
2052520345
8
Octal
122573211
10
Decimal
21689993
12
Duodecimal
73200b5
16
Hexadecimal
14af689
20
Vigesimal
6fb4jd
36
Base36
cww3t
md5
1a1bafa3f7b68d14851e89fd0d20b62a
sha1
b3366bdd58d19c72236c317a859dac359dc1ca78
sha256
e2392e40c054173023b04ce88b9108ec63e21b922fae02f5c4d8b06e7fb155d8
sha512
0865627b4f5422db8849bdfa1d2543aef5439407efdc2f8c54dbbbb34e01de70f0f4b691922f2b1f2e0cc48941c72227c47c34b5aef4778c4b2016083e6df987
ripemd-160
0a25eb2a99f2407af1d13ac7e65328083d543774
Diameter
43379986
Circumference
136282245.33043
Area
1.4779804736206E+15
Volume
4.2743181502624E+22
Surface area
5.9119218944825E+15
Circumference
136282245.33043
Perimeter
86759972
Area
470455796340049
Diagonal
30674282.268377
Surface area
2822734778040294
Volume
1.0204182929425E+22
Space diagonal
37568169.891813
Perimeter
65069979
Area
2.0371333549406E+14
Altitude
18784084.945907
Surface area
2.0371333549406E+14
Volume
1.2025744909774E+21
Height
10224760.756126