20181355 is an odd 8-digits composite number following 20181354
and preceding 20181356 . In scientific notation, it is written as 2.0181355 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 16054176 positive integers (up to 20181355) that are relatively prime to 20181355.
20181355 has 8 divisors, whose sum is 24354000
The reverse of 20181355 is 55318102
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million one hundred eighty-one thousand three hundred fifty-five
Scientific notation
2.0181355 × 10^7
Engineering notation
2.0181355 × 10^6
Prime Factorization
5 × 179 × 22549
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20181355
Product of the distinct prime numbers
The prime factorization of 20181355 is 5 × 179 × 22549.
Since it has a total of 3 prime factors.
8 , 3 , 14 , 55 , 546 , 657 , 6220 , 7489 , 25389 , 89297 , 196495 , 558826 , 3364785 , 9516994 , 89358362 , 28207532 , 758514337 , 979859964 , 4286614158 , 3421108987
n×2
40362710
n×3
60544065
n×4
80725420
n×5
100906775
n÷2
10090677.5
n÷3
6727118.3333333
n÷3
5045338.75
n÷5
4036271
n2
407287089636025
n3
8.2196053428614E+21
n4
1.6588277338418E+29
n5
3.3477391380508E+36
2 √n
4492.3663029633
3 √n
272.25974952739
4 √n
67.025116955984
5 √n
28.906137513055
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
-20181354
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 20181355 can be divided by 8 positive divisors.
The sum of these divisors (counting 20181355) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111111000101101011
3
Ternary
1101222022121121
4
Quaternary
1030333011223
5
Quinary
20131300410
6
Senary
2000320111
8
Octal
114770553
10
Decimal
20181355
12
Duodecimal
6913037
16
Hexadecimal
133f16b
20
Vigesimal
662d7f
36
Base36
c0k17
md5
5f2b66dd8b213b2f9b7e8ec289fdca11
sha1
d63e3d899e490bc1f3b435c5ec5a2f4a9b384eff
sha256
e87e841024ec2b105a2f2fda748f02b665a739a18a8e32ca3666cd7e4fc85eb6
sha512
a22cebec3acb22e1b3fd05d2925f2deb91815ad79927d4b335a0b0e059509b06e55792bb3017d14156f40e68be268fcb85e38e69c17b6d2d7cf1f926074aa7ff
ripemd-160
fc56dfacdaae496651d7e07a6aa43c2c613378dd
Diameter
40362710
Circumference
126803193.21498
Area
1.2795301287025E+15
Volume
3.4430202347388E+22
Surface area
5.11812051481E+15
Circumference
126803193.21498
Perimeter
80725420
Area
407287089636025
Diagonal
28540745.948066
Surface area
2443722537816150
Volume
8.2196053428614E+21
Space diagonal
34955132.225584
Perimeter
60544065
Area
1.7636048312911E+14
Altitude
17477566.112792
Surface area
1.7636048312911E+14
Volume
9.6868977943575E+20
Height
9513581.9826887