21494021 is an odd 8-digits composite number following 21494020
and preceding 21494022 . In scientific notation, it is written as 2.1494021 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 21141600 positive integers (up to 21494021) that are relatively prime to 21494021.
21494021 has 4 divisors, whose sum is 21846444
The reverse of 21494021 is 12049412
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million four hundred ninety-four thousand twenty-one
Scientific notation
2.1494021 × 10^7
Engineering notation
2.1494021 × 10^6
Prime Factorization
61 × 352361
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21494021
Product of the distinct prime numbers
The prime factorization of 21494021 is 61 × 352361.
Since it has a total of 2 prime factors.
1 , 5 , 31 , 42 , 696 , 94 , 59 , 5702 , 87544 , 80704 , 184606 , 758765 , 4883099 , 1370309 , 53451918 , 30353201 , 638548764 , 419141928 , 5905575617 , 4271112488
n×2
42988042
n×3
64482063
n×4
85976084
n×5
107470105
n÷2
10747010.5
n÷3
7164673.6666667
n÷3
5373505.25
n÷5
4298804.2
n2
461992938748441
n3
9.9300859273107E+21
n4
2.1343747545342E+29
n5
4.5876295795828E+36
2 √n
4636.1644707668
3 √n
278.03910996783
4 √n
68.089385889188
5 √n
29.272750677274
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
-21494020
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 21494021 can be divided by 4 positive divisors.
The sum of these divisors (counting 21494021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111111100100000101
3
Ternary
1111110000020212
4
Quaternary
1101333210011
5
Quinary
21000302041
6
Senary
2044405205
8
Octal
121774405
10
Decimal
21494021
12
Duodecimal
7246805
16
Hexadecimal
147f905
20
Vigesimal
6e6f11
36
Base36
csow5
md5
2a6f364429da780c61f29f4ca6dbae15
sha1
51d390300ff39cb334ee30089740b63a5abe41dc
sha256
f54384cc6fabf3cf70a27ec11f54a7d826b65f084d129bab0c2e925e53c37c5b
sha512
36a5c266a8a895c21ef1066c42067d0d0c262b2989bc17781086a0be87212f7093657976a21c9249c77cbbe7f5deab55a326a6862f6c0bcb58626cba54ed27ca
ripemd-160
6f51aada848f08f505e3720a3ccee2ed0637a1f8
Diameter
42988042
Circumference
135050916.93941
Area
1.4513936223825E+15
Volume
4.1595046665006E+22
Surface area
5.8055744895298E+15
Circumference
135050916.93941
Perimeter
85976084
Area
461992938748441
Diagonal
30397136.008132
Surface area
2771957632490646
Volume
9.9300859273107E+21
Space diagonal
37228736.430952
Perimeter
64482063
Area
2.0004881066259E+14
Altitude
18614368.215476
Surface area
2.0004881066259E+14
Volume
1.1702718494944E+21
Height
10132378.669377