28156909 (number)

28156909 is an odd 8-digits composite number following 28156908 and preceding 28156910. In scientific notation, it is written as 2.8156909 × 10^7. The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors. There are 25548960 positive integers (up to 28156909) that are relatively prime to 28156909.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred fifty-six thousand nine hundred nine

Notation

Scientific notation 2.8156909 × 10^7
Engineering notation 2.8156909 × 10^6

Prime Factorization of 28156909

Prime Factorization 11 × 607 × 4217

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28156909
Product of the distinct prime numbers

The prime factorization of 28156909 is 11 × 607 × 4217. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28156909)

Multiplication

n×y
n×2 56313818
n×3 84470727
n×4 112627636
n×5 140784545

Division

n÷y
n÷2 14078454.5
n÷3 9385636.3333333
n÷3 7039227.25
n÷5 5631381.8

Exponentiation

ny
n2 792811524434281
n3 2.2323121947647E+22
n4 6.2855011327581E+29
n5 1.7698028341447E+37

Nth Root

y√n
2√n 5306.3084154617
3√n 304.22506489483
4√n 72.844412383255
5√n 30.897048561135

Divisors of 28156909

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28156908
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28156909 can be divided by 8 positive divisors. The sum of these divisors (counting 28156909) is 1, the average is 0.125.

Base conversion 28156909

Base System Value
2 Binary 1101011011010001111101101
3 Ternary 1221222112000111
4 Quaternary 1223122033231
5 Quinary 24202010114
6 Senary 2443300021
8 Octal 153321755
10 Decimal 28156909
12 Duodecimal 951a611
16 Hexadecimal 1ada3ed
20 Vigesimal 8fjc59
36 Base36 gri0d

Cryptographic Hash Functions

md5 219084eee275c22a17d21beb0ce0f09d
sha1 74a90c3ac4ab7c2b728b8c3747e721cb451006ec
sha256 010f42784a2e57a2e3ff4d2e74961ec427246442f59c1378c99ff113ea494336
sha512 407f88c6a6744b2efd3036321c241544964dd119032b736cfd9a55a2182061a992aaa8c39180263a67e14820faf606422f2ed60967cd5912b4c7e8b8514e0549
ripemd-160 79e3839f4cff501e86f3ce0d1a821c8a6ec6c281

28156909 as geometric shapes

Circle

Radius = n
Diameter 56313818
Circumference 176915076.92439
Area 2.4906908608441E+15

Sphere

Radius = n
Volume 9.3506874554557E+22
Surface area 9.9627634433762E+15
Circumference 176915076.92439

Square

Length = n
Perimeter 112627636
Area 792811524434281
Diagonal 39819882.582305

Cube

Length = n
Surface area 4756869146605686
Volume 2.2323121947647E+22
Space diagonal 48769196.972093

Equilateral Triangle

Length = n
Perimeter 84470727
Area 3.4329746028658E+14
Altitude 24384598.486047

Triangular Pyramid

Length = n
Surface area 3.4329746028658E+14
Volume 2.6308051510726E+21
Height 13273294.194102