28743889 (number)

28743889 is an odd 8-digits composite number following 28743888 and preceding 28743890. In scientific notation, it is written as 2.8743889 × 10^7. The sum of its digits is 49. It has a total of 3 prime factors and 8 positive divisors. There are 26844480 positive integers (up to 28743889) that are relatively prime to 28743889.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred forty-three thousand eight hundred eighty-nine

Notation

Scientific notation 2.8743889 × 10^7
Engineering notation 2.8743889 × 10^6

Prime Factorization of 28743889

Prime Factorization 17 × 131 × 12907

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28743889
Product of the distinct prime numbers

The prime factorization of 28743889 is 17 × 131 × 12907. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 4, 43, 66, 293, 248, 4898, 2170, 2321, 14669, 671963, 763165, 8423966, 381036, 49353274, 63932824, 426185271, 771635921, 4524146022, 8602098045

Basic calculations (n = 28743889)

Multiplication

n×y
n×2 57487778
n×3 86231667
n×4 114975556
n×5 143719445

Division

n÷y
n÷2 14371944.5
n÷3 9581296.3333333
n÷3 7185972.25
n÷5 5748777.8

Exponentiation

ny
n2 826211154844321
n3 2.3748521725407E+22
n4 6.8262487238919E+29
n5 1.9621293560594E+37

Nth Root

y√n
2√n 5361.3327634087
3√n 306.3245769232
4√n 73.221122385612
5√n 31.024808208009

Divisors of 28743889

1, 17, 131, 2227, 12907, 219419, 1690817, 28743889

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 -28743888
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 28743889 can be divided by 8 positive divisors. The sum of these divisors (counting 28743889) is 1, the average is 0.125.

Base conversion 28743889

Base System Value
2 Binary 1101101101001100011010001
3 Ternary 2000002100012111
4 Quaternary 1231221203101
5 Quinary 24324301024
6 Senary 2504025321
8 Octal 155514321
10 Decimal 28743889
12 Duodecimal 9762241
16 Hexadecimal 1b698d1
20 Vigesimal 8jcje9
36 Base36 h42xd

Cryptographic Hash Functions

md5 8d15b8f8d3d5cc598d83c05f8a189965
sha1 03ed28e8a9f57a791542df76364f6ab1264b8a00
sha256 921b098a821f293a5938f217d298656045fcb6ef7917e10c44ebc6af6ea6c2fc
sha512 71c3dcc4004a6590cc9b096feb63b33be9372bc0e47237f24d20c76bfccb925345204534ce628a13462990d8a3246ec4efc1341fdf0c61029b23e903630d052d
ripemd-160 5760721d905cc2b61ee50b299ac1100c3449dda4

28743889 as geometric shapes

Circle

Radius = n
Diameter 57487778
Circumference 180603181.036
Area 2.5956188943729E+15

Sphere

Radius = n
Volume 9.9477575181542E+22
Surface area 1.0382475577491E+16
Circumference 180603181.036

Square

Length = n
Perimeter 114975556
Area 826211154844321
Diagonal 40649997.659147

Cube

Length = n
Surface area 4957266929065926
Volume 2.3748521725407E+22
Space diagonal 49785876.15512

Equilateral Triangle

Length = n
Perimeter 86231667
Area 3.5775992449263E+14
Altitude 24892938.07756

Triangular Pyramid

Length = n
Surface area 3.5775992449263E+14
Volume 2.7987901258652E+21
Height 13549999.219716