28786987 (number)

28786987 is an odd 8-digits prime number following 28786986 and preceding 28786988. In scientific notation, it is written as 2.8786987 × 10^7. The sum of its digits is 55. It has a total of 1 prime factors and 2 positive divisors. There are 28786986 positive integers (up to 28786987) that are relatively prime to 28786987.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8786987 × 10^7
Engineering notation 2.8786987 × 10^6

Prime Factorization of 28786987

Prime Factorization 28786987

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 28786987
Product of the distinct prime numbers

The prime factorization of 28786987 is 28786987. Since it has a total of 1 prime factors.

Most popular turbo-numbers

4, 7, 81, 14, 43, 274, 9575, 3243, 14244, 55334, 731208, 570068, 1516337, 3852977, 86142879, 65575429, 469088740, 591939282, 8350267055, 7234948574

Basic calculations (n = 28786987)

Multiplication

n×y
n×2 57573974
n×3 86360961
n×4 115147948
n×5 143934935

Division

n÷y
n÷2 14393493.5
n÷3 9595662.3333333
n÷3 7196746.75
n÷5 5757397.4

Exponentiation

ny
n2 828690620538169
n3 2.3855506120454E+22
n4 6.8672814456794E+29
n5 1.9768834170211E+37

Nth Root

y√n
2√n 5365.3505943228
3√n 306.47759940679
4√n 73.248553530584
5√n 31.03410622591

Divisors of 28786987

1, 28786987

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 28786988
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 14393494
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 5365.3506875134
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999305242
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28786987 can be divided by 2 positive divisors. The sum of these divisors (counting 28786987) is 28786988, the average is 14393494.

Base conversion 28786987

Base System Value
2 Binary 1101101110100000100101011
3 Ternary 2000011112022201
4 Quaternary 1231310010223
5 Quinary 24332140422
6 Senary 2505001031
8 Octal 155640453
10 Decimal 28786987
12 Duodecimal 9783177
16 Hexadecimal 1b7412b
20 Vigesimal 8ji797
36 Base36 h506j

Cryptographic Hash Functions

md5 d1344c14181e2ee69a8bfbfe605c18d2
sha1 df97ccf2a4391fc3dc169950dc7693b29c8095f7
sha256 d5b95dd74077717ff424ceb795161c94dacaca6e5f48f4490186333795d0b8af
sha512 162bc7fbeb906cf6efa1553d1e4261927f3120151bcfe5ef1d9d119aaee0e8bbfc96129a3d71a115a54b464a8314cfac897a6ec96066d1e629de50f957f0636d
ripemd-160 4d31ce34debd9b9d7723f3f479425d321491c060

28786987 as geometric shapes

Circle

Radius = n
Diameter 57573974
Circumference 180873973.75637
Area 2.6034083655815E+15

Sphere

Radius = n
Volume 9.992571036758E+22
Surface area 1.0413633462326E+16
Circumference 180873973.75637

Square

Length = n
Perimeter 115147948
Area 828690620538169
Diagonal 40710947.435258

Cube

Length = n
Surface area 4972143723229014
Volume 2.3855506120454E+22
Space diagonal 49860524.080825

Equilateral Triangle

Length = n
Perimeter 86360961
Area 3.5883356463197E+14
Altitude 24930262.040412

Triangular Pyramid

Length = n
Surface area 3.5883356463197E+14
Volume 2.8113983577351E+21
Height 13570315.811753