18221641 is an odd 8-digits composite number following 18221640
and preceding 18221642 . In scientific notation, it is written as 1.8221641 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 18200212 positive integers (up to 18221641) that are relatively prime to 18221641.
18221641 has 4 divisors, whose sum is 18243072
The reverse of 18221641 is 14612281
Previous prime number is 887
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighteen million two hundred twenty-one thousand six hundred forty-one
Scientific notation
1.8221641 × 10^7
Engineering notation
1.8221641 × 10^6
Prime Factorization
887 × 20543
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18221641
Product of the distinct prime numbers
The prime factorization of 18221641 is 887 × 20543.
Since it has a total of 2 prime factors.
10 , 5 , 55 , 72 , 819 , 948 , 3111 , 3234 , 4893 , 46951 , 290537 , 908903 , 7195456 , 3125873 , 69403781 , 71753552 , 97446536 , 406075379 , 1729206387 , 2518429197
n×2
36443282
n×3
54664923
n×4
72886564
n×5
91108205
n÷2
9110820.5
n÷3
6073880.3333333
n÷3
4555410.25
n÷5
3644328.2
n2
332028200732881
n3
6.0500986756305E+21
n4
1.1024272608191E+29
n5
2.008803377526E+36
2 √n
4268.6814123333
3 √n
263.14542791397
4 √n
65.335146837926
5 √n
28.321581248718
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18221640
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18221641 can be divided by 4 positive divisors.
The sum of these divisors (counting 18221641) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101100000101001001001
3
Ternary
1021021202101121
4
Quaternary
1011200221021
5
Quinary
14131043031
6
Senary
1450315241
8
Octal
105405111
10
Decimal
18221641
12
Duodecimal
6128b21
16
Hexadecimal
1160a49
20
Vigesimal
5dhe21
36
Base36
aujwp
md5
bb2c98e270d29b9633099e279793c775
sha1
97f711eec2150252978eff40c80aef6925ccd1a3
sha256
903bd52cbd01dce33e3845021a04fadcd2fcc5bfb67fbe4bd451e850a46036c4
sha512
f411e8a8e1f43f28570a221cdc6ce6c20c5189ab2191da1e37ec56c0826020ce9ade2f9865fb30e2e0c9808e424ba87ef6c08a067a53dc8205e13f685c41fa08
ripemd-160
486e724f9bbcbc93d8f002b360721e13573e2e45
Diameter
36443282
Circumference
114489947.0039
Area
1.0430973562071E+15
Volume
2.5342594070472E+22
Surface area
4.1723894248282E+15
Circumference
114489947.0039
Perimeter
72886564
Area
332028200732881
Diagonal
25769291.830894
Surface area
1992169204397286
Volume
6.0500986756305E+21
Space diagonal
31560808.00928
Perimeter
54664923
Area
1.4377242830376E+14
Altitude
15780404.00464
Surface area
1.4377242830376E+14
Volume
7.1301096673101E+20
Height
8589763.9436312