18012913 is an odd 8-digits composite number following 18012912
and preceding 18012914 . In scientific notation, it is written as 1.8012913 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 17759140 positive integers (up to 18012913) that are relatively prime to 18012913.
18012913 has 4 divisors, whose sum is 18266688
The reverse of 18012913 is 31921081
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighteen million twelve thousand nine hundred thirteen
Scientific notation
1.8012913 × 10^7
Engineering notation
1.8012913 × 10^6
Prime Factorization
71 × 253703
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18012913
Product of the distinct prime numbers
The prime factorization of 18012913 is 71 × 253703.
Since it has a total of 2 prime factors.
5 , 3 , 21 , 9 , 689 , 553 , 5922 , 6869 , 79997 , 16244 , 668201 , 425378 , 8712336 , 5916697 , 23062080 , 98244472 , 504319008 , 189983942 , 5265528419 , 8518345253
n×2
36025826
n×3
54038739
n×4
72051652
n×5
90064565
n÷2
9006456.5
n÷3
6004304.3333333
n÷3
4503228.25
n÷5
3602582.6
n2
324465034745569
n3
5.8445604424139E+21
n4
1.0527755877244E+29
n5
1.8963555070204E+36
2 √n
4244.1622259287
3 √n
262.13679413257
4 √n
65.147234982988
5 √n
28.256397425928
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
-18012912
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 18012913 can be divided by 4 positive divisors.
The sum of these divisors (counting 18012913) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000100101101101011110001
3
Ternary
1020220011001221
4
Quaternary
1010231223301
5
Quinary
14102403123
6
Senary
1442025041
8
Octal
104555361
10
Decimal
18012913
12
Duodecimal
6048181
16
Hexadecimal
112daf1
20
Vigesimal
5cbc5d
36
Base36
aq2up
md5
0d3c99b6829a834372b2120bd367a2b5
sha1
0a3af62baf1b803b4346c13d4d8429d13d8b8d0a
sha256
b37bca405cd9484f1d0676ddca3146449b2660098d2659e25973b980e8866227
sha512
10a0866aa939985fd850612198deca09d67390a5322c2920a65250f4be6881bd965a30fac0a905b89aeff58a5ff9432d5828906ac5990228ad89c9a0ca15b47b
ripemd-160
cdd6a958c96fc365f1af55394e3dd64dc4fff410
Diameter
36025826
Circumference
113178470.3011
Area
1.0193369695034E+15
Volume
2.4481637532465E+22
Surface area
4.0773478780137E+15
Circumference
113178470.3011
Perimeter
72051652
Area
324465034745569
Diagonal
25474105.862447
Surface area
1946790208473414
Volume
5.8445604424139E+21
Space diagonal
31199280.508318
Perimeter
54038739
Area
1.4049748136473E+14
Altitude
15599640.254159
Surface area
1.4049748136473E+14
Volume
6.8878805364759E+20
Height
8491368.6208155