28438181 (number)

28438181 is an odd 8-digits composite number following 28438180 and preceding 28438182. In scientific notation, it is written as 2.8438181 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 28289100 positive integers (up to 28438181) that are relatively prime to 28438181.

Interesting facts

Basic properties

Name

Name twenty-eight million four hundred thirty-eight thousand one hundred eighty-one

Notation

Scientific notation 2.8438181 × 10^7
Engineering notation 2.8438181 × 10^6

Prime Factorization of 28438181

Prime Factorization 191 × 148891

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28438181
Product of the distinct prime numbers

The prime factorization of 28438181 is 191 × 148891. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 1, 90, 24, 524, 210, 7459, 8763, 52410, 72284, 53602, 948085, 2409327, 7457063, 36952573, 19683520, 469072286, 172493956, 3841960780, 7779696576

Basic calculations (n = 28438181)

Multiplication

n×y
n×2 56876362
n×3 85314543
n×4 113752724
n×5 142190905

Division

n÷y
n÷2 14219090.5
n÷3 9479393.6666667
n÷3 7109545.25
n÷5 5687636.2

Exponentiation

ny
n2 808730138588761
n3 2.2998814061342E+22
n4 6.540444370618E+29
n5 1.8599834083206E+37

Nth Root

y√n
2√n 5332.746103088
3√n 305.23472390883
4√n 73.025653732698
5√n 30.958532270937

Divisors of 28438181

1, 191, 148891, 28438181

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 -28438180
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 28438181 can be divided by 4 positive divisors. The sum of these divisors (counting 28438181) is 1, the average is 0.25.

Base conversion 28438181

Base System Value
2 Binary 1101100011110111010100101
3 Ternary 1222111210211222
4 Quaternary 1230132322211
5 Quinary 24240010211
6 Senary 2453310125
8 Octal 154367245
10 Decimal 28438181
12 Duodecimal 9635345
16 Hexadecimal 1b1eea5
20 Vigesimal 8hef91
36 Base36 gxj1h

Cryptographic Hash Functions

md5 000bbd9a128d5ee6d81fa7762623982d
sha1 fb70ee27e16b10db169b41b1c04b80ae3412bc64
sha256 4448f9dbaa01c3eb53d56e62d934f4ec76c4792132f5cd439dd05f467f644da7
sha512 5ad4b64707154a6eff59ddb056bf11db106b69a07f830b1a57c76c3bf6d2838092fa20c61ba2d76b77245297f2335ce3fd3e841623f6264a07018453f72620da
ripemd-160 e70b915dbb5ce3ba7f7e203a029ae2e19542527c

28438181 as geometric shapes

Circle

Radius = n
Diameter 56876362
Circumference 178682361.02211
Area 2.5407006621271E+15

Sphere

Radius = n
Volume 9.6337207061854E+22
Surface area 1.0162802648508E+16
Circumference 178682361.02211

Square

Length = n
Perimeter 113752724
Area 808730138588761
Diagonal 40217661.259421

Cube

Length = n
Surface area 4852380831532566
Volume 2.2998814061342E+22
Space diagonal 49256374.36684

Equilateral Triangle

Length = n
Perimeter 85314543
Area 3.5019042241199E+14
Altitude 24628187.18342

Triangular Pyramid

Length = n
Surface area 3.5019042241199E+14
Volume 2.7104362303373E+21
Height 13405887.086474