28751489 (number)

28751489 is an odd 8-digits composite number following 28751488 and preceding 28751490. In scientific notation, it is written as 2.8751489 × 10^7. The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors. There are 26501760 positive integers (up to 28751489) that are relatively prime to 28751489.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred fifty-one thousand four hundred eighty-nine

Notation

Scientific notation 2.8751489 × 10^7
Engineering notation 2.8751489 × 10^6

Prime Factorization of 28751489

Prime Factorization 1033 × 13 × 2141

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28751489
Product of the distinct prime numbers

The prime factorization of 28751489 is 1033 × 13 × 2141. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28751489)

Multiplication

n×y
n×2 57502978
n×3 86254467
n×4 115005956
n×5 143757445

Division

n÷y
n÷2 14375744.5
n÷3 9583829.6666667
n÷3 7187872.25
n÷5 5750297.8

Exponentiation

ny
n2 826648119717121
n3 2.3767364320917E+22
n4 6.8334711383185E+29
n5 1.9647247026518E+37

Nth Root

y√n
2√n 5362.04149555
3√n 306.35157236133
4√n 73.225961895696
5√n 31.026448651367

Divisors of 28751489

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 -28751488
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 28751489 can be divided by 8 positive divisors. The sum of these divisors (counting 28751489) is 1, the average is 0.125.

Base conversion 28751489

Base System Value
2 Binary 1101101101011011010000001
3 Ternary 2000002201121222
4 Quaternary 1231223122001
5 Quinary 24330021424
6 Senary 2504124425
8 Octal 155533201
10 Decimal 28751489
12 Duodecimal 9766715
16 Hexadecimal 1b6b681
20 Vigesimal 8jdie9
36 Base36 h48sh

Cryptographic Hash Functions

md5 b0bd3ece5f21b0710da5030d21e48e32
sha1 2630971a6ba90fdea0a21babe35deb4ca59ca966
sha256 22ed0a644367ec5b1d28f97672eb100785125cba5febc9d9a8fff07d6e0fa62e
sha512 d65015e1da19fd2e87484394b9e9a15dcd96591b26d958a022ef4453ad2c3627c651d539c935a58fd13350807e9b9e5fa2e72e513c03d28143911178614d97f2
ripemd-160 e98f68d967246a4d9cbdaab1d8611e2b3111e253

28751489 as geometric shapes

Circle

Radius = n
Diameter 57502978
Circumference 180650933.24434
Area 2.5969916600071E+15

Sphere

Radius = n
Volume 9.9556502861049E+22
Surface area 1.0387966640028E+16
Circumference 180650933.24434

Square

Length = n
Perimeter 115005956
Area 826648119717121
Diagonal 40660745.682221

Cube

Length = n
Surface area 4959888718302726
Volume 2.3767364320917E+22
Space diagonal 49799039.741258

Equilateral Triangle

Length = n
Perimeter 86254467
Area 3.5794913583283E+14
Altitude 24899519.870629

Triangular Pyramid

Length = n
Surface area 3.5794913583283E+14
Volume 2.801010747042E+21
Height 13553581.894074