18226721 is an odd 8-digits composite number following 18226720
and preceding 18226722 . In scientific notation, it is written as 1.8226721 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 18218052 positive integers (up to 18226721) that are relatively prime to 18226721.
18226721 has 4 divisors, whose sum is 18235392
The reverse of 18226721 is 12762281
Previous prime number is 5087
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighteen million two hundred twenty-six thousand seven hundred twenty-one
Scientific notation
1.8226721 × 10^7
Engineering notation
1.8226721 × 10^6
Prime Factorization
5087 × 3583
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18226721
Product of the distinct prime numbers
The prime factorization of 18226721 is 5087 × 3583.
Since it has a total of 2 prime factors.
4 , 6 , 72 , 34 , 597 , 306 , 7038 , 3269 , 57437 , 90308 , 703214 , 523214 , 2266782 , 6996601 , 40128802 , 76365113 , 744076817 , 636285197 , 5850510430 , 6836766311
n×2
36453442
n×3
54680163
n×4
72906884
n×5
91133605
n÷2
9113360.5
n÷3
6075573.6666667
n÷3
4556680.25
n÷5
3645344.2
n2
332213358411841
n3
6.0551601962456E+21
n4
1.1036571550727E+29
n5
2.0116051045165E+36
2 √n
4269.2764023895
3 √n
263.16987969206
4 √n
65.339700048206
5 √n
28.323160223864
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
-18226720
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 18226721 can be divided by 4 positive divisors.
The sum of these divisors (counting 18226721) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000101100001111000100001
3
Ternary
1021022000100202
4
Quaternary
1011201320201
5
Quinary
14131223341
6
Senary
1450354545
8
Octal
105417041
10
Decimal
18226721
12
Duodecimal
612ba55
16
Hexadecimal
1161e21
20
Vigesimal
5di6g1
36
Base36
auntt
md5
ba5e753f972f688ad15f1e57686d7943
sha1
5ddb04b323a95b7438343a4bfc089b8246a888d1
sha256
0bb1e41a4b8834bb152133c115e88ffe687b304c7a227ee156a85cd0dcb5534f
sha512
0bfe4ac894900439a91dda7558cae5102d82a350766a6e8eef6db42a0d55074646cc4c0601c0c250d22b9003467f20931d1351c93d910e3bddcf2a240b695268
ripemd-160
5d2b2cdf0ccca010d6db61d3106750edf3cd343d
Diameter
36453442
Circumference
114521865.58526
Area
1.043679046211E+15
Volume
2.5363795718446E+22
Surface area
4.1747161848441E+15
Circumference
114521865.58526
Perimeter
72906884
Area
332213358411841
Diagonal
25776476.035791
Surface area
1993280150471046
Volume
6.0551601962456E+21
Space diagonal
31569606.827383
Perimeter
54680163
Area
1.438526039306E+14
Altitude
15784803.413691
Surface area
1.438526039306E+14
Volume
7.1360747265603E+20
Height
8592158.6785968