18121013 is an odd 8-digits composite number following 18121012
and preceding 18121014 . In scientific notation, it is written as 1.8121013 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 17990508 positive integers (up to 18121013) that are relatively prime to 18121013.
18121013 has 4 divisors, whose sum is 18251520
The reverse of 18121013 is 31012181
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
eighteen million one hundred twenty-one thousand thirteen
Scientific notation
1.8121013 × 10^7
Engineering notation
1.8121013 × 10^6
Prime Factorization
139 × 130367
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18121013
Product of the distinct prime numbers
The prime factorization of 18121013 is 139 × 130367.
Since it has a total of 2 prime factors.
8 , 10 , 10 , 82 , 931 , 425 , 7323 , 6539 , 84486 , 99006 , 346628 , 309327 , 2396448 , 7898090 , 41215150 , 97894437 , 487033055 , 632333157 , 3987539785 , 2765609911
n×2
36242026
n×3
54363039
n×4
72484052
n×5
90605065
n÷2
9060506.5
n÷3
6040337.6666667
n÷3
4530253.25
n÷5
3624202.6
n2
328371112146169
n3
5.9504171920252E+21
n4
1.0782758729211E+29
n5
1.953945111079E+36
2 √n
4256.8783163252
3 √n
262.66013147211
4 √n
65.244757002576
5 √n
28.290231048352
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
-18121012
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 18121013 can be divided by 4 positive divisors.
The sum of these divisors (counting 18121013) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101001000000100110101
3
Ternary
1021002122100122
4
Quaternary
1011020010311
5
Quinary
14114333023
6
Senary
1444221325
8
Octal
105100465
10
Decimal
18121013
12
Duodecimal
609a845
16
Hexadecimal
1148135
20
Vigesimal
5d52ad
36
Base36
ase9h
md5
292bf5b3d342d4187c3f040ebe5ccc8f
sha1
5cc8c908aca81e022e954725c1d427d0adb3726a
sha256
6c760848ecf34aa21b9c2f9e85602050bdabd5f4c3191fe8404a66729fcccdaa
sha512
864bc13ed34095b1cbef7561c26ec63623a41971845e57a550755f5332a0bf76947ac46237419edaf6f2b63126ad8a1e654604c3fbc15584f82c6468d88379b2
ripemd-160
dee66f61a12b93edd4d65e4dacfcb0a58de1ef14
Diameter
36242026
Circumference
113857682.63281
Area
1.0316082735695E+15
Volume
2.4925049248348E+22
Surface area
4.1264330942781E+15
Circumference
113857682.63281
Perimeter
72484052
Area
328371112146169
Diagonal
25626982.348539
Surface area
1970226672877014
Volume
5.9504171920252E+21
Space diagonal
31386515.200616
Perimeter
54363039
Area
1.4218886249377E+14
Altitude
15693257.600308
Surface area
1.4218886249377E+14
Volume
7.0126339122834E+20
Height
8542327.4495131