28211897 is an odd 8-digits composite number following 28211896
and preceding 28211898 . In scientific notation, it is written as 2.8211897 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 6 positive divisors.
There are 24181584 positive integers (up to 28211897) that are relatively prime to 28211897.
28211897 has 6 divisors, whose sum is 32817978
The reverse of 28211897 is 79811282
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-eight million two hundred eleven thousand eight hundred ninety-seven
Scientific notation
2.8211897 × 10^7
Engineering notation
2.8211897 × 10^6
Prime Factorization
7 × 7 × 575753
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
4030271
Product of the distinct prime numbers
The prime factorization of 28211897 is 7 × 7 × 575753.
Since it has a total of 3 prime factors.
3 , 10 , 85 , 49 , 153 , 9 , 194 , 4124 , 30509 , 95270 , 905752 , 186485 , 4690660 , 5481224 , 21130848 , 61666286 , 426259418 , 378348919 , 8318605027 , 3139527726
n×2
56423794
n×3
84635691
n×4
112847588
n×5
141059485
n÷2
14105948.5
n÷3
9403965.6666667
n÷3
7052974.25
n÷5
5642379.4
n2
795911132338609
n3
2.245416288669E+22
n4
6.3347453058053E+29
n5
1.7871518208861E+37
2 √n
5311.4872681764
3 √n
304.42297783277
4 √n
72.879951071446
5 √n
30.909106996137
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-28211896
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 28211897 can be divided by 6 positive divisors.
The sum of these divisors (counting 28211897) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1101011100111101010111001
3
Ternary
1222002022110002
4
Quaternary
1223213222321
5
Quinary
24210240042
6
Senary
2444402345
8
Octal
153475271
10
Decimal
28211897
12
Duodecimal
95463b5
16
Hexadecimal
1ae7ab9
20
Vigesimal
8g69eh
36
Base36
gsoft
md5
5001ee01c6b9bfa838064334e67d4e88
sha1
9e7f8eb565147351b3c2d42bf819a87867136e92
sha256
f8cb1cf62f803e9611dca36b6a748f33a8a0c80dd42e7c33d00d5e48dd08316c
sha512
5830e9463fbdbe59d1a18e000993fb5e193e174dc2a23c70e71abf9832acae0049452322dc99bc11a0aa11d1a503d3ef7af156a44347792901748c70ae229eaa
ripemd-160
0220a92dc041a78385d12692d4849629c1c58dec
Diameter
56423794
Circumference
177260576.71806
Area
2.5004285662653E+15
Volume
9.4055777556446E+22
Surface area
1.0001714265061E+16
Circumference
177260576.71806
Perimeter
112847588
Area
795911132338609
Diagonal
39897647.357673
Surface area
4775466794031654
Volume
2.245416288669E+22
Space diagonal
48864438.9819
Perimeter
84635691
Area
3.4463962988004E+14
Altitude
24432219.49095
Surface area
3.4463962988004E+14
Volume
2.646248473841E+21
Height
13299215.785891