28821641 is an odd 8-digits composite number following 28821640
and preceding 28821642 . In scientific notation, it is written as 2.8821641 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 28426752 positive integers (up to 28821641) that are relatively prime to 28821641.
28821641 has 4 divisors, whose sum is 29216532
The reverse of 28821641 is 14612882
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-eight million eight hundred twenty-one thousand six hundred forty-one
Scientific notation
2.8821641 × 10^7
Engineering notation
2.8821641 × 10^6
Prime Factorization
73 × 394817
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
28821641
Product of the distinct prime numbers
The prime factorization of 28821641 is 73 × 394817.
Since it has a total of 2 prime factors.
5 , 4 , 94 , 38 , 406 , 600 , 1513 , 5332 , 2050 , 77973 , 371758 , 623391 , 68001 , 1588147 , 73249669 , 64055061 , 67790553 , 429696499 , 7003744767 , 1397128514
n×2
57643282
n×3
86464923
n×4
115286564
n×5
144108205
n÷2
14410820.5
n÷3
9607213.6666667
n÷3
7205410.25
n÷5
5764328.2
n2
830686989932881
n3
2.3941762207216E+22
n4
6.9004087524375E+29
n5
1.9888110381601E+37
2 √n
5368.5790485006
3 √n
306.60053013503
4 √n
73.2705878815
5 √n
31.041574450591
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
-28821640
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 28821641 can be divided by 4 positive divisors.
The sum of these divisors (counting 28821641) is 1, the average is 0.25.
Base
System
Value
2
Binary
1101101111100100010001001
3
Ternary
2000020021212012
4
Quaternary
1231330202021
5
Quinary
24334243031
6
Senary
2505425305
8
Octal
155744211
10
Decimal
28821641
12
Duodecimal
979b235
16
Hexadecimal
1b7c889
20
Vigesimal
902e21
36
Base36
h5qx5
md5
70d56f47bf2ce70d42642aa1edfe1f9a
sha1
9df5e659fd47f20edcdb163c8ee463fc4e3d3e1a
sha256
881f88c9f4c9285f6b6fa0dd679fefbd267bbb241883f1c00f225fb9c26034a4
sha512
f0849d3f7ed2bc1982e50e1866299eae6ee9f3e719b3da8561aa1bd561599f81aeaa8cfdd1a9c9c03b2a935ee37e47ac0dbc8032eaa33b26903e316e5f26ae2b
ripemd-160
b791a60dac466d6a820e08bd503b12ab850146f0
Diameter
57643282
Circumference
181091711.26
Area
2.6096801450058E+15
Volume
1.0028701901891E+23
Surface area
1.0438720580023E+16
Circumference
181091711.26
Perimeter
115286564
Area
830686989932881
Diagonal
40759955.592048
Surface area
4984121939597286
Volume
2.3941762207216E+22
Space diagonal
49920546.56951
Perimeter
86464923
Area
3.5969801793755E+14
Altitude
24960273.284755
Surface area
3.5969801793755E+14
Volume
2.8215637350464E+21
Height
13586651.864016