18221639 is an odd 8-digits composite number following 18221638
and preceding 18221640 . In scientific notation, it is written as 1.8221639 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 17965152 positive integers (up to 18221639) that are relatively prime to 18221639.
18221639 has 8 divisors, whose sum is 18480000
The reverse of 18221639 is 93612281
Previous prime number is 349
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighteen million two hundred twenty-one thousand six hundred thirty-nine
Scientific notation
1.8221639 × 10^7
Engineering notation
1.8221639 × 10^6
Prime Factorization
479 × 349 × 109
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18221639
Product of the distinct prime numbers
The prime factorization of 18221639 is 479 × 349 × 109.
Since it has a total of 3 prime factors.
3 , 9 , 75 , 82 , 673 , 452 , 5159 , 8982 , 94685 , 84878 , 795595 , 213556 , 6658869 , 8519626 , 81549950 , 48097066 , 163385849 , 222157718 , 8097744726 , 5713587153
n×2
36443278
n×3
54664917
n×4
72886556
n×5
91108195
n÷2
9110819.5
n÷3
6073879.6666667
n÷3
4555409.75
n÷5
3644327.8
n2
332028127846321
n3
6.0500966834615E+21
n4
1.1024267768113E+29
n5
2.008802275099E+36
2 √n
4268.6811780689
3 √n
263.14541828639
4 √n
65.335145045136
5 √n
28.321580627005
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
-18221638
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 18221639 can be divided by 8 positive divisors.
The sum of these divisors (counting 18221639) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000101100000101001000111
3
Ternary
1021021202101112
4
Quaternary
1011200221013
5
Quinary
14131043024
6
Senary
1450315235
8
Octal
105405107
10
Decimal
18221639
12
Duodecimal
6128b1b
16
Hexadecimal
1160a47
20
Vigesimal
5dhe1j
36
Base36
aujwn
md5
8d150aa4fa98d981c9b2b95b753989b7
sha1
0235134ed1038bf3139465b7fb5ad79130b27c6e
sha256
43afed52d1c837f41f428641353857ff5962e26605e6b460bc9290011b41598b
sha512
5cc2f8e3d0a83e9b2062c520fefb54094ebacb16cbc65656e0e4ceedc67268c27a3d3891485ec60e57ce63abeeeed55b05aec7c8de1b9a0d25bc5edf79160f57
ripemd-160
18c963012020dc9f659de417a4ddc264c7a49f88
Diameter
36443278
Circumference
114489934.43753
Area
1.0430971272272E+15
Volume
2.5342585725694E+22
Surface area
4.1723885089087E+15
Circumference
114489934.43753
Perimeter
72886556
Area
332028127846321
Diagonal
25769289.002467
Surface area
1992168767077926
Volume
6.0500966834615E+21
Space diagonal
31560804.545179
Perimeter
54664917
Area
1.4377239674295E+14
Altitude
15780402.272589
Surface area
1.4377239674295E+14
Volume
7.1301073195165E+20
Height
8589763.0008222