18748021 is an odd 8-digits prime number following 18748020
and preceding 18748022 . In scientific notation, it is written as 1.8748021 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 18748020 positive integers (up to 18748021) that are relatively prime to 18748021.
18748021 has 2 divisors, whose sum is 18748022
The reverse of 18748021 is 12084781
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighteen million seven hundred forty-eight thousand twenty-one
Scientific notation
1.8748021 × 10^7
Engineering notation
1.8748021 × 10^6
Prime Factorization
18748021
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18748021
Product of the distinct prime numbers
The prime factorization of 18748021 is 18748021.
Since it has a total of 1 prime factors.
2 , 8 , 84 , 51 , 941 , 616 , 6222 , 8974 , 55670 , 1408 , 604818 , 993035 , 3133418 , 9394339 , 70026788 , 42557674 , 671951540 , 118960330 , 7835934668 , 6162910790
n×2
37496042
n×3
56244063
n×4
74992084
n×5
93740105
n÷2
9374010.5
n÷3
6249340.3333333
n÷3
4687005.25
n÷5
3749604.2
n2
351488291416441
n3
6.5897098687296E+21
n4
1.2354401900285E+29
n5
2.3162058626898E+36
2 √n
4329.8984976556
3 √n
265.65529529431
4 √n
65.801964238582
5 √n
28.483351298781
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18748022
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9374011
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4329.8986131317
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998933221
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18748021 can be divided by 2 positive divisors.
The sum of these divisors (counting 18748021) is 18748022, the average is 9374011.
Base
System
Value
2
Binary
1000111100001001001110101
3
Ternary
1022021111110011
4
Quaternary
1013201021311
5
Quinary
14244414041
6
Senary
1505500221
8
Octal
107411165
10
Decimal
18748021
12
Duodecimal
6341671
16
Hexadecimal
11e1275
20
Vigesimal
5h3a11
36
Base36
b5u2d
md5
3a05753386485801f590878de340e526
sha1
431ae024f822e37010661a5afece6c33e2d750dc
sha256
832f5b694ae3173a3778ba9ffd08c2e943255f339042881d74a76d6b6bd6266a
sha512
9655be2551eec099f350edd83e8ff5da4a9d3edea20b2e957310aedba0528d4349e9049c6f90a718f72699200ec0ea042cc6e2dfcb2a574bfdd32b8a61d48820
ripemd-160
2ea90efc2d979c8a3f6c6655389323c255edee1f
Diameter
37496042
Circumference
117797290.08589
Area
1.1042330341367E+15
Volume
2.7602912150519E+22
Surface area
4.4169321365469E+15
Circumference
117797290.08589
Perimeter
74992084
Area
351488291416441
Diagonal
26513705.565856
Surface area
2108929748498646
Volume
6.5897098687296E+21
Space diagonal
32472524.913368
Perimeter
56244063
Area
1.5219889474971E+14
Altitude
16236262.456684
Surface area
1.5219889474971E+14
Volume
7.766047557051E+20
Height
8837901.8552852