21127951 is an odd 8-digits composite number following 21127950
and preceding 21127952 . In scientific notation, it is written as 2.1127951 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 19502712 positive integers (up to 21127951) that are relatively prime to 21127951.
21127951 has 4 divisors, whose sum is 22753192
The reverse of 21127951 is 15972112
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million one hundred twenty-seven thousand nine hundred fifty-one
Scientific notation
2.1127951 × 10^7
Engineering notation
2.1127951 × 10^6
Prime Factorization
13 × 1625227
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21127951
Product of the distinct prime numbers
The prime factorization of 21127951 is 13 × 1625227.
Since it has a total of 2 prime factors.
5 , 1 , 21 , 54 , 185 , 328 , 5515 , 2093 , 71943 , 62309 , 704506 , 496895 , 3412772 , 1176101 , 541304 , 85365599 , 237333899 , 286940717 , 3861039597 , 2551715242
n×2
42255902
n×3
63383853
n×4
84511804
n×5
105639755
n÷2
10563975.5
n÷3
7042650.3333333
n÷3
5281987.75
n÷5
4225590.2
n2
446390313458401
n3
9.4313126696237E+21
n4
1.9926431194949E+29
n5
4.2100466189175E+36
2 √n
4596.5150929808
3 √n
276.45161220649
4 √n
67.797603888196
5 √n
29.172354081087
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
-21127950
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 21127951 can be divided by 4 positive divisors.
The sum of these divisors (counting 21127951) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100110001100001111
3
Ternary
1110202102002201
4
Quaternary
1100212030033
5
Quinary
20402043301
6
Senary
2032502331
8
Octal
120461417
10
Decimal
21127951
12
Duodecimal
70aa9a7
16
Hexadecimal
142630f
20
Vigesimal
6c0jhb
36
Base36
ckufj
md5
f03c6281e92ab3c6ee610bc58a5d5c2c
sha1
994a1915a7a9e3638a872267fb94c91cf144490c
sha256
9c43c72ed595434d0a27376d15e89a13e3e47208b9e648806d51600d4bfabf95
sha512
3da9044521e7cc627bcdfad573f420f140e934229eebe238001444d2358f55dbe348a8c1bce44e60e4ccf052ecea743339c97cff5a97f7df07188972472a3c36
ripemd-160
4b8cb999f8c087dd6ba696ab1f0f4eecf05938b7
Diameter
42255902
Circumference
132750831.29401
Area
1.4023765293946E+15
Volume
3.9505790128798E+22
Surface area
5.6095061175782E+15
Circumference
132750831.29401
Perimeter
84511804
Area
446390313458401
Diagonal
29879434.849354
Surface area
2678341880750406
Volume
9.4313126696237E+21
Space diagonal
36594684.591826
Perimeter
63383853
Area
1.9329267572914E+14
Altitude
18297342.295913
Surface area
1.9329267572914E+14
Volume
1.1114908573636E+21
Height
9959811.6164514