28776987 (number)

28776987 is an odd 8-digits composite number following 28776986 and preceding 28776988. In scientific notation, it is written as 2.8776987 × 10^7. The sum of its digits is 54. It has a total of 4 prime factors and 12 positive divisors. There are 19043808 positive integers (up to 28776987) that are relatively prime to 28776987.

Interesting facts

Basic properties

Name

Name twenty-eight million seven hundred seventy-six thousand nine hundred eighty-seven

Notation

Scientific notation 2.8776987 × 10^7
Engineering notation 2.8776987 × 10^6

Prime Factorization of 28776987

Prime Factorization 3 × 3 × 137 × 23339

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9592329
Product of the distinct prime numbers

The prime factorization of 28776987 is 3 × 3 × 137 × 23339. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 9, 86, 33, 438, 879, 9306, 8714, 36325, 3703, 507084, 233221, 6679366, 1262916, 5737803, 55703766, 222762652, 266019623, 3529998746, 619506195

Basic calculations (n = 28776987)

Multiplication

n×y
n×2 57553974
n×3 86330961
n×4 115107948
n×5 143884935

Division

n÷y
n÷2 14388493.5
n÷3 9592329
n÷3 7194246.75
n÷5 5755397.4

Exponentiation

ny
n2 828114980798169
n3 2.3830654036934E+22
n4 6.8577442142235E+29
n5 1.9734521610204E+37

Nth Root

y√n
2√n 5364.4186078269
3√n 306.44210731746
4√n 73.242191446099
5√n 31.031949805763

Divisors of 28776987

1, 3, 9, 137, 411, 1233, 23339, 70017, 210051, 3197443, 9592329, 28776987

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28776986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28776987 can be divided by 12 positive divisors. The sum of these divisors (counting 28776987) is 1, the average is 0.083333333333333.

Base conversion 28776987

Base System Value
2 Binary 1101101110001101000011011
3 Ternary 2000011000121100
4 Quaternary 1231301220123
5 Quinary 24331330422
6 Senary 2504442443
8 Octal 155615033
10 Decimal 28776987
12 Duodecimal 9779423
16 Hexadecimal 1b71a1b
20 Vigesimal 8jh297
36 Base36 h4sgr

Cryptographic Hash Functions

md5 85ee88450626781319120d7a2feb4f58
sha1 fda268c351313f192755c81cd53d425650a6d438
sha256 a125ce1a0f3fbea5f2498546398724c43ee8f1f9866bd6548bf488cc3e5cc5a5
sha512 266001a91721f8267012f40d3780b964871eb30d1238e31daa3676ed4b7545ab0fcd526a56676acbf15512bedfa16c09a5df3b6cf0a5071db44753f0abd370bd
ripemd-160 da46eb228f9ba3f9e714a0efaf5757f6cda1bdcd

28776987 as geometric shapes

Circle

Radius = n
Diameter 57553974
Circumference 180811141.9033
Area 2.6015999400032E+15

Sphere

Radius = n
Volume 9.9821610203563E+22
Surface area 1.0406399760013E+16
Circumference 180811141.9033

Square

Length = n
Perimeter 115107948
Area 828114980798169
Diagonal 40696805.299634

Cube

Length = n
Surface area 4968689884789014
Volume 2.3830654036934E+22
Space diagonal 49843203.572749

Equilateral Triangle

Length = n
Perimeter 86330961
Area 3.5858430531284E+14
Altitude 24921601.786375

Triangular Pyramid

Length = n
Surface area 3.5858430531284E+14
Volume 2.8084695116045E+21
Height 13565601.766545