28996821 (number)

28996821 is an odd 8-digits composite number following 28996820 and preceding 28996822. In scientific notation, it is written as 2.8996821 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 16569576 positive integers (up to 28996821) that are relatively prime to 28996821.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8996821 × 10^7
Engineering notation 2.8996821 × 10^6

Prime Factorization of 28996821

Prime Factorization 9 × 7 × 460267

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28996821
Product of the distinct prime numbers

The prime factorization of 28996821 is 9 × 7 × 460267. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28996821)

Multiplication

n×y
n×2 57993642
n×3 86990463
n×4 115987284
n×5 144984105

Division

n÷y
n÷2 14498410.5
n÷3 9665607
n÷3 7249205.25
n÷5 5799364.2

Exponentiation

ny
n2 840815628106041
n3 2.4380980262193E+22
n4 7.0697092046736E+29
n5 2.0499909232997E+37

Nth Root

y√n
2√n 5384.869636305
3√n 307.22045584204
4√n 73.381670983326
5√n 31.079217625269

Divisors of 28996821

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 -28996820
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 28996821 can be divided by 8 positive divisors. The sum of these divisors (counting 28996821) is 1, the average is 0.125.

Base conversion 28996821

Base System Value
2 Binary 1101110100111010011010101
3 Ternary 2000120012011100
4 Quaternary 1232213103111
5 Quinary 24410344241
6 Senary 2513300313
8 Octal 156472325
10 Decimal 28996821
12 Duodecimal 9864699
16 Hexadecimal 1ba74d5
20 Vigesimal 914c11
36 Base36 h9i39

Cryptographic Hash Functions

md5 98be094a5fb1b84f39ebf152085dbff2
sha1 4eb855e15b7b6a7735708307a785e5ca67549fdb
sha256 2a4176d0eda4f9bf34d4f601069d38da6c83af3157411ffb476f81e31ccfdbe5
sha512 542b2c6ed0403cfe81fb11a79349dd9cbcf664e259900056518a6e6d72888f87198a3facfa056bcc41225729e1bcb81c670382f9735ef5bd19af811479bfb15a
ripemd-160 8d736c317abbdd9eb068b001f3063510ffd1f6e9

28996821 as geometric shapes

Circle

Radius = n
Diameter 57993642
Circumference 182192399.66212
Area 2.6415002002814E+15

Sphere

Radius = n
Volume 1.0212681130537E+23
Surface area 1.0566000801126E+16
Circumference 182192399.66212

Square

Length = n
Perimeter 115987284
Area 840815628106041
Diagonal 41007697.523905

Cube

Length = n
Surface area 5044893768636246
Volume 2.4380980262193E+22
Space diagonal 50223967.22998

Equilateral Triangle

Length = n
Perimeter 86990463
Area 3.640838469194E+14
Altitude 25111983.61499

Triangular Pyramid

Length = n
Surface area 3.640838469194E+14
Volume 2.8733260792287E+21
Height 13669232.507968