21242045 is an odd 8-digits composite number following 21242044
and preceding 21242046 . In scientific notation, it is written as 2.1242045 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 15448720 positive integers (up to 21242045) that are relatively prime to 21242045.
21242045 has 4 divisors, whose sum is 21628320
The reverse of 21242045 is 54024212
Previous prime number is 55
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million two hundred forty-two thousand forty-five
Scientific notation
2.1242045 × 10^7
Engineering notation
2.1242045 × 10^6
Prime Factorization
55 × 386219
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21242045
Product of the distinct prime numbers
The prime factorization of 21242045 is 55 × 386219.
Since it has a total of 2 prime factors.
9 , 4 , 29 , 19 , 88 , 101 , 8937 , 8017 , 35963 , 58169 , 244419 , 672769 , 1662841 , 4556702 , 47438682 , 73245272 , 245539504 , 843461043 , 8921277838 , 82357754
n×2
42484090
n×3
63726135
n×4
84968180
n×5
106210225
n÷2
10621022.5
n÷3
7080681.6666667
n÷3
5310511.25
n÷5
4248409
n2
451224475782025
n3
9.5849306196632E+21
n4
2.0360352754476E+29
n5
4.3249552942646E+36
2 √n
4608.9093069836
3 √n
276.9483454012
4 √n
67.888948342006
5 √n
29.203793232538
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
-21242044
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 21242045 can be divided by 4 positive divisors.
The sum of these divisors (counting 21242045) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000010000010111101
3
Ternary
1110222012121102
4
Quaternary
1101002002331
5
Quinary
20414221140
6
Senary
2035142445
8
Octal
121020275
10
Decimal
21242045
12
Duodecimal
7144a25
16
Hexadecimal
14420bd
20
Vigesimal
6cf525
36
Base36
cnagt
md5
a654860fae47a9d9859a99b1c9e6de17
sha1
32a0b3185f5f83251cb7c9fa9340a6b7908930cd
sha256
c8533094e0cc7906ae45672b64badce97e95b16e29f4f80512584474f4cba9ee
sha512
892fad1e73cd67c52080aef58915659a9792f0b04990195785bce942f8348d53c9884e66cbba01a501e502556e475326177f056403b581674de30de1865beaff
ripemd-160
54a4d503ba0db1753ffc30e1adadcc22ed31b0ee
Diameter
42484090
Circumference
133467705.03845
Area
1.4175634982367E+15
Volume
4.0149263493202E+22
Surface area
5.6702539929469E+15
Circumference
133467705.03845
Perimeter
84968180
Area
451224475782025
Diagonal
30040788.13154
Surface area
2707346854692150
Volume
9.5849306196632E+21
Space diagonal
36792301.196664
Perimeter
63726135
Area
1.9538592941827E+14
Altitude
18396150.598332
Surface area
1.9538592941827E+14
Volume
1.1295949063944E+21
Height
10013596.043847