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.
28996821 has 8 divisors, whose sum is 36821440
The reverse of 28996821 is 12869982
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-eight million nine hundred ninety-six thousand eight hundred twenty-one
Scientific notation
2.8996821 × 10^7
Engineering notation
2.8996821 × 10^6
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.
4 , 4 , 53 , 94 , 581 , 336 , 4720 , 4936 , 76410 , 12999 , 860733 , 802798 , 8493036 , 6876965 , 20536447 , 33173093 , 109001045 , 144113091 , 5224200754 , 3317157938
n×2
57993642
n×3
86990463
n×4
115987284
n×5
144984105
n÷2
14498410.5
n÷3
9665607
n÷3
7249205.25
n÷5
5799364.2
n2
840815628106041
n3
2.4380980262193E+22
n4
7.0697092046736E+29
n5
2.0499909232997E+37
2 √n
5384.869636305
3 √n
307.22045584204
4 √n
73.381670983326
5 √n
31.079217625269
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
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
md5
98be094a5fb1b84f39ebf152085dbff2
sha1
4eb855e15b7b6a7735708307a785e5ca67549fdb
sha256
2a4176d0eda4f9bf34d4f601069d38da6c83af3157411ffb476f81e31ccfdbe5
sha512
542b2c6ed0403cfe81fb11a79349dd9cbcf664e259900056518a6e6d72888f87198a3facfa056bcc41225729e1bcb81c670382f9735ef5bd19af811479bfb15a
ripemd-160
8d736c317abbdd9eb068b001f3063510ffd1f6e9
Diameter
57993642
Circumference
182192399.66212
Area
2.6415002002814E+15
Volume
1.0212681130537E+23
Surface area
1.0566000801126E+16
Circumference
182192399.66212
Perimeter
115987284
Area
840815628106041
Diagonal
41007697.523905
Surface area
5044893768636246
Volume
2.4380980262193E+22
Space diagonal
50223967.22998
Perimeter
86990463
Area
3.640838469194E+14
Altitude
25111983.61499
Surface area
3.640838469194E+14
Volume
2.8733260792287E+21
Height
13669232.507968