28991644 (number)

28991644 is an even 8-digits composite number following 28991643 and preceding 28991645. In scientific notation, it is written as 2.8991644 × 10^7. The sum of its digits is 43. It has a total of 5 prime factors and 24 positive divisors. There are 12484080 positive integers (up to 28991644) that are relatively prime to 28991644.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred ninety-one thousand six hundred forty-four

Notation

Scientific notation 2.8991644 × 10^7
Engineering notation 2.8991644 × 10^6

Prime Factorization of 28991644

Prime Factorization 2 × 2 × 11 × 19 × 34679

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 14495822
Product of the distinct prime numbers

The prime factorization of 28991644 is 2 × 2 × 11 × 19 × 34679. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 4, 33, 55, 98, 587, 1249, 4632, 69874, 67997, 539647, 861306, 1364954, 8440310, 89553472, 4037840, 156113619, 988764431, 7427497928, 5582875252

Basic calculations (n = 28991644)

Multiplication

n×y
n×2 57983288
n×3 86974932
n×4 115966576
n×5 144958220

Division

n÷y
n÷2 14495822
n÷3 9663881.3333333
n÷3 7247911
n÷5 5798328.8

Exponentiation

ny
n2 840515421822736
n3 2.4367923885995E+22
n4 7.0646617432185E+29
n5 2.0481615823981E+37

Nth Root

y√n
2√n 5384.3889161167
3√n 307.20217136685
4√n 73.378395431603
5√n 31.078107789116

Divisors of 28991644

1, 2, 4, 11, 19, 22, 38, 44, 76, 209, 418, 836, 34679, 69358, 138716, 381469, 658901, 762938, 1317802, 1525876, 2635604, 7247911, 14495822, 28991644

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 -28991643
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 28991644 can be divided by 24 positive divisors. The sum of these divisors (counting 28991644) is 1, the average is 0.041666666666667.

Base conversion 28991644

Base System Value
2 Binary 1101110100110000010011100
3 Ternary 2000112221001121
4 Quaternary 1232212002130
5 Quinary 24410213034
6 Senary 2513220324
8 Octal 156460234
10 Decimal 28991644
12 Duodecimal 98616a4
16 Hexadecimal 1ba609c
20 Vigesimal 913j24
36 Base36 h9e3g

Cryptographic Hash Functions

md5 5bd87c9230f6ec54c286ce6ee8f42f16
sha1 d16a5867ea60f89f3444af199ef3737f383accd1
sha256 8ea4f7107215b189a808665b9edf59c4afd82cb6ce19596fc14e814dd3df295b
sha512 917c05ae502505d0fcc02ddf235287829764aa190d292da87887d28b0bf2a4a63f7932d16a707330a07231f27ccacf7e11f2118bb3e390b1dba6afca6a799549
ripemd-160 9dab8cb644b8f09ff6682ed1d9fcd374417e7537

28991644 as geometric shapes

Circle

Radius = n
Diameter 57983288
Circumference 182159871.61178
Area 2.6405570744272E+15

Sphere

Radius = n
Volume 1.0207212088463E+23
Surface area 1.0562228297709E+16
Circumference 182159871.61178

Square

Length = n
Perimeter 115966576
Area 840515421822736
Diagonal 41000376.140293

Cube

Length = n
Surface area 5043092530936416
Volume 2.4367923885995E+22
Space diagonal 50215000.402949

Equilateral Triangle

Length = n
Perimeter 86974932
Area 3.6395385378554E+14
Altitude 25107500.201475

Triangular Pyramid

Length = n
Surface area 3.6395385378554E+14
Volume 2.8717873705374E+21
Height 13666792.046764