18408971 is an odd 8-digits composite number following 18408970
and preceding 18408972 . In scientific notation, it is written as 1.8408971 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 15779112 positive integers (up to 18408971) that are relatively prime to 18408971.
18408971 has 4 divisors, whose sum is 21038832
The reverse of 18408971 is 17980481
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million four hundred eight thousand nine hundred seventy-one
Scientific notation
1.8408971 × 10^7
Engineering notation
1.8408971 × 10^6
Prime Factorization
7 × 2629853
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18408971
Product of the distinct prime numbers
The prime factorization of 18408971 is 7 × 2629853.
Since it has a total of 2 prime factors.
10 , 4 , 11 , 8 , 768 , 653 , 9687 , 3221 , 76289 , 69422 , 418188 , 536280 , 5638077 , 6524971 , 8255883 , 3653257 , 32367371 , 831839177 , 5028702334 , 1618196469
n×2
36817942
n×3
55226913
n×4
73635884
n×5
92044855
n÷2
9204485.5
n÷3
6136323.6666667
n÷3
4602242.75
n÷5
3681794.2
n2
338890213278841
n3
6.238620108434E+21
n4
1.1484657665618E+29
n5
2.1142072991129E+36
2 √n
4290.5676780585
3 √n
264.04412236982
4 √n
65.502424978458
5 √n
28.379576002854
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
-18408970
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 18408971 can be divided by 4 positive divisors.
The sum of these divisors (counting 18408971) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110001110011000001011
3
Ternary
1021122021100202
4
Quaternary
1012032120023
5
Quinary
14203041341
6
Senary
1454322415
8
Octal
106163013
10
Decimal
18408971
12
Duodecimal
61b940b
16
Hexadecimal
118e60b
20
Vigesimal
5f128b
36
Base36
aykgb
md5
fb8fc4ffde714fb6b710cd9c5460cd61
sha1
1087b25182f2c810e10d173364b9c6b9ce3f27a9
sha256
555dd736f363f622274bced69869523775cdcb6567e977dc9130cba3bb42741a
sha512
024e35859ed0bedd19630d04ec0ff5897e3ccb890464234735179a2be839fb5ac8c7b36b20d6bacadbcffb47682ad64e936e07550f838bb3d734b6a92a551877
ripemd-160
894497c9cbd913f3304086d30af80085a610c49b
Diameter
36817942
Circumference
115666976.1075
Area
1.0646550044103E+15
Volume
2.6132270801592E+22
Surface area
4.2586200176411E+15
Circumference
115666976.1075
Perimeter
73635884
Area
338890213278841
Diagonal
26034216.457533
Surface area
2033341279673046
Volume
6.238620108434E+21
Space diagonal
31885273.087062
Perimeter
55226913
Area
1.467437668967E+14
Altitude
15942636.543531
Surface area
1.467437668967E+14
Volume
7.3522843065341E+20
Height
8678072.152511