20181355 (number)

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.

Interesting facts

Basic properties

Name

Name twenty million one hundred eighty-one thousand three hundred fifty-five

Notation

Scientific notation 2.0181355 × 10^7
Engineering notation 2.0181355 × 10^6

Prime Factorization of 20181355

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.

Most popular turbo-numbers

Basic calculations (n = 20181355)

Multiplication

n×y
n×2 40362710
n×3 60544065
n×4 80725420
n×5 100906775

Division

n÷y
n÷2 10090677.5
n÷3 6727118.3333333
n÷3 5045338.75
n÷5 4036271

Exponentiation

ny
n2 407287089636025
n3 8.2196053428614E+21
n4 1.6588277338418E+29
n5 3.3477391380508E+36

Nth Root

y√n
2√n 4492.3663029633
3√n 272.25974952739
4√n 67.025116955984
5√n 28.906137513055

Divisors of 20181355

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 conversion 20181355

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

Cryptographic Hash Functions

md5 5f2b66dd8b213b2f9b7e8ec289fdca11
sha1 d63e3d899e490bc1f3b435c5ec5a2f4a9b384eff
sha256 e87e841024ec2b105a2f2fda748f02b665a739a18a8e32ca3666cd7e4fc85eb6
sha512 a22cebec3acb22e1b3fd05d2925f2deb91815ad79927d4b335a0b0e059509b06e55792bb3017d14156f40e68be268fcb85e38e69c17b6d2d7cf1f926074aa7ff
ripemd-160 fc56dfacdaae496651d7e07a6aa43c2c613378dd

20181355 as geometric shapes

Circle

Radius = n
Diameter 40362710
Circumference 126803193.21498
Area 1.2795301287025E+15

Sphere

Radius = n
Volume 3.4430202347388E+22
Surface area 5.11812051481E+15
Circumference 126803193.21498

Square

Length = n
Perimeter 80725420
Area 407287089636025
Diagonal 28540745.948066

Cube

Length = n
Surface area 2443722537816150
Volume 8.2196053428614E+21
Space diagonal 34955132.225584

Equilateral Triangle

Length = n
Perimeter 60544065
Area 1.7636048312911E+14
Altitude 17477566.112792

Triangular Pyramid

Length = n
Surface area 1.7636048312911E+14
Volume 9.6868977943575E+20
Height 9513581.9826887