21072518 is an even 8-digits composite number following 21072517
and preceding 21072519 . In scientific notation, it is written as 2.1072518 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 10459216 positive integers (up to 21072518) that are relatively prime to 21072518.
21072518 has 8 divisors, whose sum is 31839912
The reverse of 21072518 is 81527012
Previous prime number is 137
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million seventy-two thousand five hundred eighteen
Scientific notation
2.1072518 × 10^7
Engineering notation
2.1072518 × 10^6
Prime Factorization
2 × 137 × 76907
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21072518
Product of the distinct prime numbers
The prime factorization of 21072518 is 2 × 137 × 76907.
Since it has a total of 3 prime factors.
6 , 4 , 92 , 4 , 276 , 766 , 1487 , 829 , 65593 , 39600 , 406443 , 236862 , 7194199 , 474619 , 36924531 , 57040050 , 265041792 , 407925542 , 4104807911 , 5965897902
n×2
42145036
n×3
63217554
n×4
84290072
n×5
105362590
n÷2
10536259
n÷3
7024172.6666667
n÷3
5268129.5
n÷5
4214503.6
n2
444051014860324
n3
9.3572730035624E+21
n4
1.9718130379848E+29
n5
4.155106573557E+36
2 √n
4590.4812383888
3 √n
276.20962685377
4 √n
67.753090249736
5 √n
29.15703020142
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
-21072517
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 21072518 can be divided by 8 positive divisors.
The sum of these divisors (counting 21072518) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011000101010000110
3
Ternary
1110122121001122
4
Quaternary
1100120222012
5
Quinary
20343310033
6
Senary
2031353542
8
Octal
120305206
10
Decimal
21072518
12
Duodecimal
70828b2
16
Hexadecimal
1418a86
20
Vigesimal
6be15i
36
Base36
cjnnq
md5
c74675dcf90037477828564034935147
sha1
dd03cb001ba9e08c100c78c00d719ebd2a7fa077
sha256
322e9c0bdc004a2276d7511586f50708a0fa4b1609ed49f3255c10d3b1880ad9
sha512
11526fc4f51e337ce5e3f9d44a046ef13de0312c06ac0bf45a6d6d799ac90138660f1a9177ab805e1201a0df705f3e30a91760c3b7b4129bae5152b17375f540
ripemd-160
d3935d0e9d696507d30f59ec5314c3f9a172ab85
Diameter
42145036
Circumference
132402535.48288
Area
1.3950274061043E+15
Volume
3.9195653500834E+22
Surface area
5.5801096244171E+15
Circumference
132402535.48288
Perimeter
84290072
Area
444051014860324
Diagonal
29801040.748951
Surface area
2664306089161944
Volume
9.3572730035624E+21
Space diagonal
36498671.81941
Perimeter
63217554
Area
1.9227972972265E+14
Altitude
18249335.909705
Surface area
1.9227972972265E+14
Volume
1.1027651990388E+21
Height
9933680.2496504