18221640 is an even 8-digits composite number following 18221639
and preceding 18221641 . In scientific notation, it is written as 1.8221640 × 10^7.
The sum of its digits is 24. It has a total of 5 prime factors and 16 positive divisors.
There are 4859072 positive integers (up to 18221640) that are relatively prime to 18221640.
18221640 has 16 divisors, whose sum is 36443520
The reverse of 18221640 is 04612281
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
eighteen million two hundred twenty-one thousand six hundred forty
Scientific notation
1.8221640 × 10^7
Engineering notation
1.8221640 × 10^6
Prime Factorization
2 × 2 × 2 × 15 × 151847
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
4555410
Product of the distinct prime numbers
The prime factorization of 18221640 is 2 × 2 × 2 × 15 × 151847.
Since it has a total of 5 prime factors.
3 , 7 , 60 , 10 , 212 , 68 , 8774 , 7417 , 99514 , 29077 , 605093 , 279275 , 7946949 , 6755609 , 2553680 , 14953805 , 654328312 , 895213538 , 129109133 , 3020936207
n×2
36443280
n×3
54664920
n×4
72886560
n×5
91108200
n÷2
9110820
n÷3
6073880
n÷3
4555410
n÷5
3644328
n2
332028164289600
n3
6.0500976795459E+21
n4
1.1024270188152E+29
n5
2.0088028263124E+36
2 √n
4268.6812952011
3 √n
263.14542310018
4 √n
65.335145941531
5 √n
28.321580937862
1 , 2 , 4 , 8 , 15 , 30 , 60 , 120 , 151847 , 303694 , 607388 , 1214776 , 2277705 , 4555410 , 9110820 , 18221640
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
-18221639
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 18221640 can be divided by 16 positive divisors.
The sum of these divisors (counting 18221640) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000101100000101001001000
3
Ternary
1021021202101120
4
Quaternary
1011200221020
5
Quinary
14131043030
6
Senary
1450315240
8
Octal
105405110
10
Decimal
18221640
12
Duodecimal
6128b20
16
Hexadecimal
1160a48
20
Vigesimal
5dhe20
36
Base36
aujwo
md5
2efafa84107e194c70cdaae0aa749183
sha1
ca975508f5d7c9aae3fa16cf302bc743a281aae9
sha256
38793a4309241b6dcab7966dbf4d12d1f8ea0ceb04a2625a98ed12da324fe3d0
sha512
1ae505f7aec3199db1c7045e79c40e43e095bf53d4828f5afef14f4fdfe5a193417c717c32a4a7542c853ade100ea5e9759f8b2b7d08e8c590519185c3ddedbf
ripemd-160
ef963574979060ebf61d5d6881b60fb6d8902243
Diameter
36443280
Circumference
114489940.72072
Area
1.0430972417171E+15
Volume
2.5342589898083E+22
Surface area
4.1723889668684E+15
Circumference
114489940.72072
Perimeter
72886560
Area
332028164289600
Diagonal
25769290.41668
Surface area
1992168985737600
Volume
6.0500976795459E+21
Space diagonal
31560806.277229
Perimeter
54664920
Area
1.4377241252335E+14
Altitude
15780403.138615
Surface area
1.4377241252335E+14
Volume
7.1301084934132E+20
Height
8589763.4722267