28821431 (number)

28821431 is an odd 8-digits composite number following 28821430 and preceding 28821432. In scientific notation, it is written as 2.8821431 × 10^7. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 28701600 positive integers (up to 28821431) that are relatively prime to 28821431.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8821431 × 10^7
Engineering notation 2.8821431 × 10^6

Prime Factorization of 28821431

Prime Factorization 241 × 119591

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28821431
Product of the distinct prime numbers

The prime factorization of 28821431 is 241 × 119591. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 1, 58, 1, 163, 671, 4585, 8018, 74401, 79855, 113155, 239203, 132634, 5059812, 65868705, 44825478, 417059012, 257582692, 7249742105, 9046255595

Basic calculations (n = 28821431)

Multiplication

n×y
n×2 57642862
n×3 86464293
n×4 115285724
n×5 144107155

Division

n÷y
n÷2 14410715.5
n÷3 9607143.6666667
n÷3 7205357.75
n÷5 5764286.2

Exponentiation

ny
n2 830674884887761
n3 2.3941238878226E+22
n4 6.9002076438329E+29
n5 1.988738584924E+37

Nth Root

y√n
2√n 5368.5594902171
3√n 306.59978548315
4√n 73.270454415249
5√n 31.041529215487

Divisors of 28821431

1, 241, 119591, 28821431

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 -28821430
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 28821431 can be divided by 4 positive divisors. The sum of these divisors (counting 28821431) is 1, the average is 0.25.

Base conversion 28821431

Base System Value
2 Binary 1101101111100011110110111
3 Ternary 2000020021120102
4 Quaternary 1231330132313
5 Quinary 24334241211
6 Senary 2505424315
8 Octal 155743667
10 Decimal 28821431
12 Duodecimal 979b09b
16 Hexadecimal 1b7c7b7
20 Vigesimal 902dbb
36 Base36 h5qrb

Cryptographic Hash Functions

md5 afb3a2c61eae1f99a1dd866815a1daa3
sha1 e2258ded17218f213e64260b72723dbb7c45f452
sha256 999ccada344a252bd4aa5a86fc84cbf0c205d005d5abfeb5386b1f7295e528bd
sha512 6bd778d7bfa01117d6437c97209be4fc251e37545bef179978bee3a5f2b86dd1ba353f2ee127fed7ab8e1e1595ae1b17b3f1b8564ac2c45aeab110f7ab4b15e5
ripemd-160 072c89b0e3cbbb96514f4347e0adad9e0906a4f6

28821431 as geometric shapes

Circle

Radius = n
Diameter 57642862
Circumference 181090391.79109
Area 2.6096421158849E+15

Sphere

Radius = n
Volume 1.0028482690356E+23
Surface area 1.043856846354E+16
Circumference 181090391.79109

Square

Length = n
Perimeter 115285724
Area 830674884887761
Diagonal 40759658.6072

Cube

Length = n
Surface area 4984049309326566
Volume 2.3941238878226E+22
Space diagonal 49920182.838841

Equilateral Triangle

Length = n
Perimeter 86464293
Area 3.5969277629926E+14
Altitude 24960091.41942

Triangular Pyramid

Length = n
Surface area 3.5969277629926E+14
Volume 2.8215020601334E+21
Height 13586552.869067