28993871 (number)

28993871 is an odd 8-digits composite number following 28993870 and preceding 28993872. In scientific notation, it is written as 2.8993871 × 10^7. The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors. There are 28785144 positive integers (up to 28993871) that are relatively prime to 28993871.

Interesting facts

Basic properties

Name

Name twenty-eight million nine hundred ninety-three thousand eight hundred seventy-one

Notation

Scientific notation 2.8993871 × 10^7
Engineering notation 2.8993871 × 10^6

Prime Factorization of 28993871

Prime Factorization 139 × 208589

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28993871
Product of the distinct prime numbers

The prime factorization of 28993871 is 139 × 208589. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 5, 64, 34, 742, 621, 712, 5757, 76617, 37280, 115810, 495220, 1862412, 5467624, 34673819, 91607278, 48622579, 37959439, 6360915997, 3632318953

Basic calculations (n = 28993871)

Multiplication

n×y
n×2 57987742
n×3 86981613
n×4 115975484
n×5 144969355

Division

n÷y
n÷2 14496935.5
n÷3 9664623.6666667
n÷3 7248467.75
n÷5 5798774.2

Exponentiation

ny
n2 840644555564641
n3 2.4373539800894E+22
n4 7.0668326880047E+29
n5 2.0489483533459E+37

Nth Root

y√n
2√n 5384.5957137003
3√n 307.2100371013
4√n 73.379804535719
5√n 31.078585228889

Divisors of 28993871

1, 139, 208589, 28993871

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 -28993870
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 28993871 can be divided by 4 positive divisors. The sum of these divisors (counting 28993871) is 1, the average is 0.25.

Base conversion 28993871

Base System Value
2 Binary 1101110100110100101001111
3 Ternary 2000120001010002
4 Quaternary 1232212211033
5 Quinary 24410300441
6 Senary 2513234515
8 Octal 156464517
10 Decimal 28993871
12 Duodecimal 9862a3b
16 Hexadecimal 1ba694f
20 Vigesimal 9144db
36 Base36 h9ftb

Cryptographic Hash Functions

md5 fd8fe1266d8d91cd7b784692404fc769
sha1 8466f53f7e17bc19bf9ea72c79ddb1101aaf9dff
sha256 fb3e8112777ad2bcd528712f4fb6024dc9308e4bef1f82467cbedd5ae0e1f741
sha512 7385c1ae81f3282082eab6db0a374576138833a63ed9055427b6697b8373314f95e911f45ea6422fe79c75e047a688594e2bb1e434cc32e9f39ec9bfef37b7a2
ripemd-160 e6eb42b6395e2343b15f3dea31b9c125884f2f3a

28993871 as geometric shapes

Circle

Radius = n
Diameter 57987742
Circumference 182173864.26546
Area 2.6409627600421E+15

Sphere

Radius = n
Volume 1.0209564477395E+23
Surface area 1.0563851040169E+16
Circumference 182173864.26546

Square

Length = n
Perimeter 115975484
Area 840644555564641
Diagonal 41003525.593896

Cube

Length = n
Surface area 5043867333387846
Volume 2.4373539800894E+22
Space diagonal 50218857.680098

Equilateral Triangle

Length = n
Perimeter 86981613
Area 3.6400977033603E+14
Altitude 25109428.840049

Triangular Pyramid

Length = n
Surface area 3.6400977033603E+14
Volume 2.8724492124553E+21
Height 13667841.864632