28162821 (number)

28162821 is an odd 8-digits composite number following 28162820 and preceding 28162822. In scientific notation, it is written as 2.8162821 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 18775212 positive integers (up to 28162821) that are relatively prime to 28162821.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8162821 × 10^7
Engineering notation 2.8162821 × 10^6

Prime Factorization of 28162821

Prime Factorization 3 × 9387607

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 28162821
Product of the distinct prime numbers

The prime factorization of 28162821 is 3 × 9387607. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 10, 98, 16, 204, 997, 9943, 6587, 37849, 58938, 961350, 940935, 597783, 3587215, 65078670, 62292660, 14442246, 850491221, 4578608776, 7292947757

Basic calculations (n = 28162821)

Multiplication

n×y
n×2 56325642
n×3 84488463
n×4 112651284
n×5 140814105

Division

n÷y
n÷2 14081410.5
n÷3 9387607
n÷3 7040705.25
n÷5 5632564.2

Exponentiation

ny
n2 793144486678041
n3 2.2337186205451E+22
n4 6.2907817674777E+29
n5 1.7716616086754E+37

Nth Root

y√n
2√n 5306.8654590069
3√n 304.24635573465
4√n 72.848235798864
5√n 30.898345919533

Divisors of 28162821

1, 3, 9387607, 28162821

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 -28162820
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 28162821 can be divided by 4 positive divisors. The sum of these divisors (counting 28162821) is 1, the average is 0.25.

Base conversion 28162821

Base System Value
2 Binary 1101011011011101100000101
3 Ternary 1221222211010110
4 Quaternary 1223123230011
5 Quinary 24202202241
6 Senary 2443343233
8 Octal 153335405
10 Decimal 28162821
12 Duodecimal 9521b19
16 Hexadecimal 1adbb05
20 Vigesimal 8g0711
36 Base36 grmkl

Cryptographic Hash Functions

md5 3cdc25db28ef3a97d26c229cf031f275
sha1 805868d1f1674b6a5ec41ecbd24c04cd0f8997b1
sha256 0d669a65e720d0df9a1088dde508aaa61b7ab419c62dc3a8c216a82569e5c206
sha512 658eaf0f851300f8f9d420e183be83f53e3656dc1d8ebdd870b936cfc3576fb84be26218f88c5bfc155771198875eea638b5b4ad27d1b8118b68360a0aaf8977
ripemd-160 0ef945507dd182350ae9d2e874a74969318b5144

28162821 as geometric shapes

Circle

Radius = n
Diameter 56325642
Circumference 176952223.11593
Area 2.491736892583E+15

Sphere

Radius = n
Volume 9.3565786779881E+22
Surface area 9.9669475703319E+15
Circumference 176952223.11593

Square

Length = n
Perimeter 112651284
Area 793144486678041
Diagonal 39828243.412886

Cube

Length = n
Surface area 4758866920068246
Volume 2.2337186205451E+22
Space diagonal 48779436.856468

Equilateral Triangle

Length = n
Perimeter 84488463
Area 3.4344163716738E+14
Altitude 24389718.428234

Triangular Pyramid

Length = n
Surface area 3.4344163716738E+14
Volume 2.6324626397501E+21
Height 13276081.137629