28933991 (number)

28933991 is an odd 8-digits composite number following 28933990 and preceding 28933992. In scientific notation, it is written as 2.8933991 × 10^7. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 28526400 positive integers (up to 28933991) that are relatively prime to 28933991.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred thirty-three thousand nine hundred ninety-one

Notation

Scientific notation 2.8933991 × 10^7
Engineering notation 2.8933991 × 10^6

Prime Factorization of 28933991

Prime Factorization 71 × 407521

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28933991
Product of the distinct prime numbers

The prime factorization of 28933991 is 71 × 407521. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28933991)

Multiplication

n×y
n×2 57867982
n×3 86801973
n×4 115735964
n×5 144669955

Division

n÷y
n÷2 14466995.5
n÷3 9644663.6666667
n÷3 7233497.75
n÷5 5786798.2

Exponentiation

ny
n2 837175835188081
n3 2.4222838080749E+22
n4 7.0086337902286E+29
n5 2.0278774700877E+37

Nth Root

y√n
2√n 5379.0325338299
3√n 306.99840138939
4√n 73.341887989265
5√n 31.065737513852

Divisors of 28933991

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 -28933990
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 28933991 can be divided by 4 positive divisors. The sum of these divisors (counting 28933991) is 1, the average is 0.25.

Base conversion 28933991

Base System Value
2 Binary 1101110010111111101100111
3 Ternary 2000102222222022
4 Quaternary 1232113331213
5 Quinary 24401341431
6 Senary 2512053355
8 Octal 156277547
10 Decimal 28933991
12 Duodecimal 983425b
16 Hexadecimal 1b97f67
20 Vigesimal 90gejb
36 Base36 h85lz

Cryptographic Hash Functions

md5 4e6ed9ffc36d1ef57ba66c40188697f6
sha1 e74f5381c7aa87799943dde3d677e3214216196b
sha256 8ef59554aa01dc81121689ce190adb34c020fe5e27f7f1dd5aa05390b991461e
sha512 47bc84dcf203bc21f17268836dc6dbe468b775c98404304c4ecac7b99cc5d67914aebf0aa85a08b90bb588272657e33b76574e7b30da0dc035c74264a3c7a098
ripemd-160 fa9f60585372671d6ae0695612ebb87257c60c6c

28933991 as geometric shapes

Circle

Radius = n
Diameter 57867982
Circumference 181797627.12927
Area 2.6300654535898E+15

Sphere

Radius = n
Volume 1.0146438688477E+23
Surface area 1.0520261814359E+16
Circumference 181797627.12927

Square

Length = n
Perimeter 115735964
Area 837175835188081
Diagonal 40918842.485781

Cube

Length = n
Surface area 5023055011128486
Volume 2.4222838080749E+22
Space diagonal 50115142.477741

Equilateral Triangle

Length = n
Perimeter 86801973
Area 3.6250777035367E+14
Altitude 25057571.23887

Triangular Pyramid

Length = n
Surface area 3.6250777035367E+14
Volume 2.8546888444136E+21
Height 13639614.161927