28857521 (number)

28857521 is an odd 8-digits composite number following 28857520 and preceding 28857522. In scientific notation, it is written as 2.8857521 × 10^7. The sum of its digits is 38. It has a total of 5 prime factors and 24 positive divisors. There are 21863520 positive integers (up to 28857521) that are relatively prime to 28857521.

Interesting facts

Basic properties

Name

Name twenty-eight million eight hundred fifty-seven thousand five hundred twenty-one

Notation

Scientific notation 2.8857521 × 10^7
Engineering notation 2.8857521 × 10^6

Prime Factorization of 28857521

Prime Factorization 7 × 7 × 11 × 37 × 1447

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 4122503
Product of the distinct prime numbers

The prime factorization of 28857521 is 7 × 7 × 11 × 37 × 1447. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 9, 20, 51, 662, 688, 2364, 3809, 89378, 70438, 16202, 76915, 8698953, 309078, 97908111, 99578380, 433209500, 65717256, 5264637171, 9690867212

Basic calculations (n = 28857521)

Multiplication

n×y
n×2 57715042
n×3 86572563
n×4 115430084
n×5 144287605

Division

n÷y
n÷2 14428760.5
n÷3 9619173.6666667
n÷3 7214380.25
n÷5 5771504.2

Exponentiation

ny
n2 832756518265441
n3 2.4031288713732E+22
n4 6.9348341871358E+29
n5 2.0012212318679E+37

Nth Root

y√n
2√n 5371.9196754978
3√n 306.72770616001
4√n 73.293380843687
5√n 31.04929932297

Divisors of 28857521

1, 7, 11, 37, 49, 77, 259, 407, 539, 1447, 1813, 2849, 10129, 15917, 19943, 53539, 70903, 111419, 374773, 588929, 779933, 2623411, 4122503, 28857521

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 -28857520
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 28857521 can be divided by 24 positive divisors. The sum of these divisors (counting 28857521) is 1, the average is 0.041666666666667.

Base conversion 28857521

Base System Value
2 Binary 1101110000101010010110001
3 Ternary 2000022010002002
4 Quaternary 1232011102301
5 Quinary 24341420041
6 Senary 2510303345
8 Octal 156052261
10 Decimal 28857521
12 Duodecimal 97b7b55
16 Hexadecimal 1b854b1
20 Vigesimal 9073g1
36 Base36 h6ilt

Cryptographic Hash Functions

md5 748217caa8fd8482092b09f5965003db
sha1 a9da611aa70db4f1ae53c2a7e2598ad07d463f9c
sha256 f4bf0c5b35db24a55742fddc383ae81baf58b472865c7fd7f1ed03370c2b0f99
sha512 47815c9821fc7a42628ac0c6c0c48fcefec3fdd35f589342e63d29e02ec6ec77d9a75fd19aa282c3d6b0afeccfcabeb71b620faf040fa48f9af0e5dae5c7a917
ripemd-160 f6640ff41012f76a0b2be7242ba5a9575508e01a

28857521 as geometric shapes

Circle

Radius = n
Diameter 57715042
Circumference 181317151.94883
Area 2.6161817600117E+15

Sphere

Radius = n
Volume 1.0066202677247E+23
Surface area 1.0464727040047E+16
Circumference 181317151.94883

Square

Length = n
Perimeter 115430084
Area 832756518265441
Diagonal 40810697.574666

Cube

Length = n
Surface area 4996539109592646
Volume 2.4031288713732E+22
Space diagonal 49982692.552486

Equilateral Triangle

Length = n
Perimeter 86572563
Area 3.6059414999248E+14
Altitude 24991346.276243

Triangular Pyramid

Length = n
Surface area 3.6059414999248E+14
Volume 2.8321145350219E+21
Height 13603565.858222