18308521 is an odd 8-digits composite number following 18308520
and preceding 18308522 . In scientific notation, it is written as 1.8308521 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 13960080 positive integers (up to 18308521) that are relatively prime to 18308521.
18308521 has 16 divisors, whose sum is 23316480
The reverse of 18308521 is 12580381
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighteen million three hundred eight thousand five hundred twenty-one
Scientific notation
1.8308521 × 10^7
Engineering notation
1.8308521 × 10^6
Prime Factorization
7 × 47 × 11 × 5059
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18308521
Product of the distinct prime numbers
The prime factorization of 18308521 is 7 × 47 × 11 × 5059.
Since it has a total of 4 prime factors.
5 , 1 , 10 , 41 , 391 , 210 , 2642 , 8985 , 27265 , 52535 , 329832 , 143528 , 4558466 , 2776699 , 62379252 , 63036541 , 409246590 , 346383845 , 3556676703 , 65750258
n×2
36617042
n×3
54925563
n×4
73234084
n×5
91542605
n÷2
9154260.5
n÷3
6102840.3333333
n÷3
4577130.25
n÷5
3661704.2
n2
335201941207441
n3
6.1370517798372E+21
n4
1.1236034138924E+29
n5
2.057151669892E+36
2 √n
4278.8457555747
3 √n
263.56298700556
4 √n
65.412886769923
5 √n
28.348537103961
1 , 7 , 11 , 47 , 77 , 329 , 517 , 3619 , 5059 , 35413 , 55649 , 237773 , 389543 , 1664411 , 2615503 , 18308521
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18308520
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18308521 can be divided by 16 positive divisors.
The sum of these divisors (counting 18308521) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000101110101110110101001
3
Ternary
1021110011120101
4
Quaternary
1011311312221
5
Quinary
14141333041
6
Senary
1452225401
8
Octal
105656651
10
Decimal
18308521
12
Duodecimal
616b261
16
Hexadecimal
1175da9
20
Vigesimal
5e8b61
36
Base36
awey1
md5
b0dd0737f96537dfe7f8d1d0320cc604
sha1
4b1c0345a430a6ee4a3d5ee352484fef2e86601a
sha256
1aa0ad15dc18db6b02e9a1fe361b300c4180700de22d03c7cf8252bc9ea79d52
sha512
827eee677418f0fd11a9a092552c87ea91a49a8ba4995a26ce03e11275ef427335062f95536bd497887a11b210ccc63e7fee7b8ae47ec9bdbdf2d14e1dc34737
ripemd-160
c104a2c3bddacfb8651c1f43e1a356967b5de595
Diameter
36617042
Circumference
115035830.14339
Area
1.0530679559663E+15
Volume
2.5706822381649E+22
Surface area
4.2122718238653E+15
Circumference
115035830.14339
Perimeter
73234084
Area
335201941207441
Diagonal
25892158.705193
Surface area
2011211647244646
Volume
6.1370517798372E+21
Space diagonal
31711288.583442
Perimeter
54925563
Area
1.4514669824175E+14
Altitude
15855644.291721
Surface area
1.4514669824175E+14
Volume
7.2325848833598E+20
Height
8630719.5683975