18445021 is an odd 8-digits composite number following 18445020
and preceding 18445022 . In scientific notation, it is written as 1.8445021 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 15748992 positive integers (up to 18445021) that are relatively prime to 18445021.
18445021 has 8 divisors, whose sum is 18894200
The reverse of 18445021 is 12054481
Previous prime number is 337
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighteen million four hundred forty-five thousand twenty-one
Scientific notation
1.8445021 × 10^7
Engineering notation
1.8445021 × 10^6
Prime Factorization
49 × 337 × 1117
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18445021
Product of the distinct prime numbers
The prime factorization of 18445021 is 49 × 337 × 1117.
Since it has a total of 3 prime factors.
6 , 7 , 35 , 86 , 896 , 178 , 8817 , 6310 , 1954 , 77284 , 938638 , 736825 , 6929454 , 5082891 , 64359855 , 57120472 , 368824783 , 718988984 , 8085103708 , 4460693559
n×2
36890042
n×3
55335063
n×4
73780084
n×5
92225105
n÷2
9222510.5
n÷3
6148340.3333333
n÷3
4611255.25
n÷5
3689004.2
n2
340218799690441
n3
6.275342904885E+21
n4
1.157488316628E+29
n5
2.1349896307459E+36
2 √n
4294.7666991351
3 √n
264.21636780862
4 √n
65.534469549506
5 √n
28.390682362462
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18445020
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18445021 can be divided by 8 positive divisors.
The sum of these divisors (counting 18445021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110010111001011011101
3
Ternary
1021201002210221
4
Quaternary
1012113023131
5
Quinary
14210220041
6
Senary
1455201341
8
Octal
106271335
10
Decimal
18445021
12
Duodecimal
6216251
16
Hexadecimal
11972dd
20
Vigesimal
5f5cb1
36
Base36
azc9p
md5
8e63fe0b7f33f137ec7223541cd61c9b
sha1
5709a745c8f156e7136b3f9c21a2e99e09ddfe77
sha256
60ece8eee4fcb50abbec01131e286729aab06221377cba036a310088a7dbb577
sha512
f73537c6c1650e266c0415e0c050ba3678e77a0dab5d3d9e6a3917ca9b16e867d7fc175e78b528d24c0313a3a602baf8985887cfbae72751508de7e56e071524
ripemd-160
5fc6d5af4c35ff6cef1e0abf5cbdd8b6120be4a6
Diameter
36890042
Circumference
115893484.93782
Area
1.0688288817206E+15
Volume
2.6286094891658E+22
Surface area
4.2753155268825E+15
Circumference
115893484.93782
Perimeter
73780084
Area
340218799690441
Diagonal
26085198.856457
Surface area
2041312798142646
Volume
6.275342904885E+21
Space diagonal
31947713.518675
Perimeter
55335063
Area
1.4731906168849E+14
Altitude
15973856.759337
Surface area
1.4731906168849E+14
Volume
7.3955625371918E+20
Height
8695066.2854855