21252979 is an odd 8-digits composite number following 21252978
and preceding 21252980 . In scientific notation, it is written as 2.1252979 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 19320880 positive integers (up to 21252979) that are relatively prime to 21252979.
21252979 has 4 divisors, whose sum is 23185080
The reverse of 21252979 is 97925212
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million two hundred fifty-two thousand nine hundred seventy-nine
Scientific notation
2.1252979 × 10^7
Engineering notation
2.1252979 × 10^6
Prime Factorization
11 × 1932089
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21252979
Product of the distinct prime numbers
The prime factorization of 21252979 is 11 × 1932089.
Since it has a total of 2 prime factors.
6 , 7 , 90 , 25 , 351 , 867 , 4285 , 4041 , 13447 , 14911 , 267785 , 613690 , 3648487 , 9217413 , 14258639 , 30334109 , 40780888 , 872704384 , 3343406690 , 6308472532
n×2
42505958
n×3
63758937
n×4
85011916
n×5
106264895
n÷2
10626489.5
n÷3
7084326.3333333
n÷3
5313244.75
n÷5
4250595.8
n2
451689116374441
n3
9.5997393048346E+21
n4
2.0402305785112E+29
n5
4.3360977640257E+36
2 √n
4610.0953352398
3 √n
276.99585548153
4 √n
67.897682841462
5 √n
29.206799050017
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
-21252978
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 21252979 can be divided by 4 positive divisors.
The sum of these divisors (counting 21252979) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000100101101110011
3
Ternary
1110222202121101
4
Quaternary
1101010231303
5
Quinary
20420043404
6
Senary
2035305231
8
Octal
121045563
10
Decimal
21252979
12
Duodecimal
714b217
16
Hexadecimal
1444b73
20
Vigesimal
6cgc8j
36
Base36
cniwj
md5
775b9d0d850fc8e1f80f74bec18d16c8
sha1
b4302bcc845bc28adbd2cff74d0e06839cd2aa51
sha256
082f39fa88be5ba8864cb5ac9fa5df00df3ba275b9255eb06e8e6342623a4c50
sha512
d64e4ada29f4f0b82203347d007e75c9c3b10811ba28dd6eb058ff506a5d5f30c2d8c9f971ac984a1315cd53d95a489136ec6bf3573ffd5f96188fdcee4db078
ripemd-160
25570f21daa24c3abfbb690b2784db26ec856fa2
Diameter
42505958
Circumference
133536405.3866
Area
1.4190232097084E+15
Volume
4.0211293968594E+22
Surface area
5.6760928388336E+15
Circumference
133536405.3866
Perimeter
85011916
Area
451689116374441
Diagonal
30056251.142631
Surface area
2710134698246646
Volume
9.5997393048346E+21
Space diagonal
36811239.440194
Perimeter
63758937
Area
1.9558712469661E+14
Altitude
18405619.720097
Surface area
1.9558712469661E+14
Volume
1.1313401266786E+21
Height
10018750.380877