28821438 (number)

28821438 is an even 8-digits composite number following 28821437 and preceding 28821439. In scientific notation, it is written as 2.8821438 × 10^7. The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors. There are 8970192 positive integers (up to 28821438) that are relatively prime to 28821438.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8821438 × 10^7
Engineering notation 2.8821438 × 10^6

Prime Factorization of 28821438

Prime Factorization 2 × 3 × 3 × 989 × 1619

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 9607146
Product of the distinct prime numbers

The prime factorization of 28821438 is 2 × 3 × 3 × 989 × 1619. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 9, 12, 89, 420, 138, 8743, 7548, 50607, 46002, 435566, 186695, 1085622, 2753411, 91888303, 60029388, 312021077, 503210990, 4117404486, 5756319757

Basic calculations (n = 28821438)

Multiplication

n×y
n×2 57642876
n×3 86464314
n×4 115285752
n×5 144107190

Division

n÷y
n÷2 14410719
n÷3 9607146
n÷3 7205359.5
n÷5 5764287.6

Exponentiation

ny
n2 830675288387844
n3 2.3941256322402E+22
n4 6.9002143473823E+29
n5 1.9887409999979E+37

Nth Root

y√n
2√n 5368.560142161
3√n 306.59981030494
4√n 73.270458864136
5√n 31.041530723328

Divisors of 28821438

1, 2, 3, 6, 9, 18, 989, 1619, 1978, 2967, 3238, 4857, 5934, 8901, 9714, 14571, 17802, 29142, 1601191, 3202382, 4803573, 9607146, 14410719, 28821438

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28821437
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28821438 can be divided by 24 positive divisors. The sum of these divisors (counting 28821438) is 1, the average is 0.041666666666667.

Base conversion 28821438

Base System Value
2 Binary 1101101111100011110111110
3 Ternary 2000020021120200
4 Quaternary 1231330132332
5 Quinary 24334241223
6 Senary 2505424330
8 Octal 155743676
10 Decimal 28821438
12 Duodecimal 979b0a6
16 Hexadecimal 1b7c7be
20 Vigesimal 902dbi
36 Base36 h5qri

Cryptographic Hash Functions

md5 07477beeaab40ee31046e3754eecf1f3
sha1 13b2630536f4733e29d4bc3775ef3c50f3eb177c
sha256 3c174a7fd552b3fb24bf3d5bafceb977a97cfd88d43ea48812f7815038427298
sha512 8f300a82a871b50ef5fe717784c73e2630973d4b647f33165309476e0e0bbcc2e82b5ec91dd683c3b2e64b1adf065be6aba6f69f46231da650373cb947646063
ripemd-160 b5f17bcd3db5e80ccd98265251c3a634aa5857a8

28821438 as geometric shapes

Circle

Radius = n
Diameter 57642876
Circumference 181090435.77339
Area 2.6096433835178E+15

Sphere

Radius = n
Volume 1.0028489997356E+23
Surface area 1.0438573534071E+16
Circumference 181090435.77339

Square

Length = n
Perimeter 115285752
Area 830675288387844
Diagonal 40759668.506695

Cube

Length = n
Surface area 4984051730327064
Volume 2.3941256322402E+22
Space diagonal 49920194.963196

Equilateral Triangle

Length = n
Perimeter 86464314
Area 3.5969295101992E+14
Altitude 24960097.481598

Triangular Pyramid

Length = n
Surface area 3.5969295101992E+14
Volume 2.8215041159493E+21
Height 13586556.168898