21128873 is an odd 8-digits prime number following 21128872
and preceding 21128874 . In scientific notation, it is written as 2.1128873 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 21128872 positive integers (up to 21128873) that are relatively prime to 21128873.
21128873 has 2 divisors, whose sum is 21128874
The reverse of 21128873 is 37882112
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 32 Digital Root 5
Name
twenty-one million one hundred twenty-eight thousand eight hundred seventy-three
Scientific notation
2.1128873 × 10^7
Engineering notation
2.1128873 × 10^6
Prime Factorization
21128873
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21128873 Product of the distinct prime numbers
The prime factorization of 21128873 is 21128873.
Since it has a total of 1 prime factors.
10 , 7 , 22 , 52 , 313 , 759 , 974 , 187 , 22500 , 42174 , 475444 , 976954 , 323498 , 7296700 , 74712037 , 89295543 , 142046696 , 722668309 , 8931946059 , 379703364
n×2
42257746
n×3
63386619
n×4
84515492
n×5
105644365
n÷2
10564436.5
n÷3
7042957.6666667
n÷3
5282218.25
n÷5
4225774.6
n2
446429274250129
n3
9.4325474391131E+21
n4
1.992990969075E+29
n5
4.2109653075732E+36
2 √n4596.615385259
3 √n276.45563349372
4 √n67.798343528873
5 √n29.172608686381
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21128874 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10564437 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4596.6154940347 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999053428 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21128873 can be divided by 2 positive divisors.
The sum of these divisors (counting 21128873) is 21128874, the average is 10564437.
Base
System
Value
2
Binary
1010000100110011010101001
3
Ternary
1110202110100212
4
Quaternary
1100212122221
5
Quinary
20402110443
6
Senary
2032510505
8
Octal
120463251
10
Decimal
21128873
12
Duodecimal
70ab435
16
Hexadecimal
14266a9
20
Vigesimal
6c123d
36
Base36
ckv55
md5
27253bd06c30b15024e076bb8f3743ed
sha1
7ab172eb924de671c139d3837a44c32b8f46e472
sha256
85bf05bf1dc44038f919ba9cbfed239c7c9122aab3dd64bf224575f5b08038a6
sha512
e13d0040cfc401a9b0d9d1c99e58160444c7bc0e05cb52b41f29429af66b4a3dd92acc9541576c5ae4212dac799814109cb2217003645bfc84cd5f93c5f7e018
ripemd-160
31a5fcdce5e240ff0ed67d31102d6477f88eaa05
Diameter
42257746
Circumference
132756624.39086
Area
1.4024989283316E+15
Volume
3.951096231914E+22
Surface area
5.6099957133265E+15
Circumference
132756624.39086
Perimeter
84515492
Area
446429274250129
Diagonal
29880738.754259
Surface area
2678575645500774
Volume
9.4325474391131E+21
Space diagonal
36596281.54267
Perimeter
63386619
Area
1.9330954624683E+14
Altitude
18298140.771335
Surface area
1.9330954624683E+14
Volume
1.1116363763435E+21
Height
9960246.2514196