28128213 (number)

28128213 is an odd 8-digits composite number following 28128212 and preceding 28128214. In scientific notation, it is written as 2.8128213 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors. There are 18195840 positive integers (up to 28128213) that are relatively prime to 28128213.

Interesting facts

Basic properties

Name

Name twenty-eight million one hundred twenty-eight thousand two hundred thirteen

Notation

Scientific notation 2.8128213 × 10^7
Engineering notation 2.8128213 × 10^6

Prime Factorization of 28128213

Prime Factorization 3 × 3 × 5777 × 541

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9376071
Product of the distinct prime numbers

The prime factorization of 28128213 is 3 × 3 × 5777 × 541. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 1, 68, 80, 580, 911, 9586, 3349, 1097, 43992, 281858, 762208, 2046978, 5137644, 59150271, 13142194, 762813726, 126407649, 7534966333, 7204592896

Basic calculations (n = 28128213)

Multiplication

n×y
n×2 56256426
n×3 84384639
n×4 112512852
n×5 140641065

Division

n÷y
n÷2 14064106.5
n÷3 9376071
n÷3 7032053.25
n÷5 5625642.6

Exponentiation

ny
n2 791196366573369
n3 2.2254939923802E+22
n4 6.259916904789E+29
n5 1.7608027606021E+37

Nth Root

y√n
2√n 5303.6037747931
3√n 304.12167985031
4√n 72.825845513754
5√n 30.890748271813

Divisors of 28128213

1, 3, 9, 541, 1623, 4869, 5777, 17331, 51993, 3125357, 9376071, 28128213

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 -28128212
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 28128213 can be divided by 12 positive divisors. The sum of these divisors (counting 28128213) is 1, the average is 0.083333333333333.

Base conversion 28128213

Base System Value
2 Binary 1101011010011001111010101
3 Ternary 1221221001122200
4 Quaternary 1223103033111
5 Quinary 24200100323
6 Senary 2442515113
8 Octal 153231725
10 Decimal 28128213
12 Duodecimal 9505a99
16 Hexadecimal 1ad33d5
20 Vigesimal 8fg0ad
36 Base36 gqvv9

Cryptographic Hash Functions

md5 6a48d177cad1743537f4863445f2d461
sha1 fdd5e5218db5de10053982d5e98415757f21ad0f
sha256 6827b34e19be8f5fb3ead591fdc6527541c427faf817b7df216743eab0b645fe
sha512 d8a64e9189f542ee101203e09040ba76592fc357869259d4cf147379a4cd317b5c704ff15beb282d382cca3a9df5288767387ab7d8db0bd7197ad99bb822a951
ripemd-160 59ec1418a6ee977be91212eda86727ffd873785f

28128213 as geometric shapes

Circle

Radius = n
Diameter 56256426
Circumference 176734774.63882
Area 2.4856166927738E+15

Sphere

Radius = n
Volume 9.3221274360931E+22
Surface area 9.9424667710953E+15
Circumference 176734774.63882

Square

Length = n
Perimeter 112512852
Area 791196366573369
Diagonal 39779300.309919

Cube

Length = n
Surface area 4747178199440214
Volume 2.2254939923802E+22
Space diagonal 48719494.042119

Equilateral Triangle

Length = n
Perimeter 84384639
Area 3.4259807641724E+14
Altitude 24359747.02106

Triangular Pyramid

Length = n
Surface area 3.4259807641724E+14
Volume 2.6227698225032E+21
Height 13259766.769973