28128085 (number)

28128085 is an odd 8-digits composite number following 28128084 and preceding 28128086. In scientific notation, it is written as 2.8128085 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 22502464 positive integers (up to 28128085) that are relatively prime to 28128085.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred twenty-eight thousand eighty-five

Notation

Scientific notation 2.8128085 × 10^7
Engineering notation 2.8128085 × 10^6

Prime Factorization of 28128085

Prime Factorization 5 × 5625617

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28128085
Product of the distinct prime numbers

The prime factorization of 28128085 is 5 × 5625617. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28128085)

Multiplication

n×y
n×2 56256170
n×3 84384255
n×4 112512340
n×5 140640425

Division

n÷y
n÷2 14064042.5
n÷3 9376028.3333333
n÷3 7032021.25
n÷5 5625617

Exponentiation

ny
n2 791189165767225
n3 2.225463610578E+22
n4 6.2598029602744E+29
n5 1.7607626974985E+37

Nth Root

y√n
2√n 5303.5917075129
3√n 304.12121853846
4√n 72.825762663449
5√n 30.890720157528

Divisors of 28128085

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 -28128084
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 28128085 can be divided by 4 positive divisors. The sum of these divisors (counting 28128085) is 1, the average is 0.25.

Base conversion 28128085

Base System Value
2 Binary 1101011010011001101010101
3 Ternary 1221221001110221
4 Quaternary 1223103031111
5 Quinary 24200044320
6 Senary 2442514341
8 Octal 153231525
10 Decimal 28128085
12 Duodecimal 95059b1
16 Hexadecimal 1ad3355
20 Vigesimal 8fg045
36 Base36 gqvrp

Cryptographic Hash Functions

md5 a45aed104c61225855383f889a7583bb
sha1 43d341be388b76c1e16972741b4cefef8ef1e505
sha256 512be5167c86ec612a7bd76908888de20e51830f35585a9bafb84b0a3e160603
sha512 ede21ef10a3c5ce87475c0274660d9f009862405a907bf8c7aef6c391f3909239ec33c1db0c02441666ca9a18909202a1d0be09fb295e32ded40633e15f590ff
ripemd-160 47ecc75cdf16897381298b2312af5c0580ea87c6

28128085 as geometric shapes

Circle

Radius = n
Diameter 56256170
Circumference 176733970.3911
Area 2.4855940707742E+15

Sphere

Radius = n
Volume 9.3220001730975E+22
Surface area 9.9423762830966E+15
Circumference 176733970.3911

Square

Length = n
Perimeter 112512340
Area 791189165767225
Diagonal 39779119.290583

Cube

Length = n
Surface area 4747134994603350
Volume 2.225463610578E+22
Space diagonal 48719272.339616

Equilateral Triangle

Length = n
Perimeter 84384255
Area 3.4259495837672E+14
Altitude 24359636.169808

Triangular Pyramid

Length = n
Surface area 3.4259495837672E+14
Volume 2.622734017206E+21
Height 13259706.430194