21241918 is an even 8-digits composite number following 21241917
and preceding 21241919 . In scientific notation, it is written as 2.1241918 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 10620958 positive integers (up to 21241918) that are relatively prime to 21241918.
21241918 has 4 divisors, whose sum is 31862880
The reverse of 21241918 is 81914212
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million two hundred forty-one thousand nine hundred eighteen
Scientific notation
2.1241918 × 10^7
Engineering notation
2.1241918 × 10^6
Prime Factorization
2 × 10620959
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21241918
Product of the distinct prime numbers
The prime factorization of 21241918 is 2 × 10620959.
Since it has a total of 2 prime factors.
5 , 1 , 63 , 8 , 178 , 848 , 3655 , 3896 , 86383 , 93280 , 529776 , 404234 , 661340 , 1305085 , 30022317 , 36266271 , 683557241 , 855990614 , 8628380185 , 4402670844
n×2
42483836
n×3
63725754
n×4
84967672
n×5
106209590
n÷2
10620959
n÷3
7080639.3333333
n÷3
5310479.5
n÷5
4248383.6
n2
451219080318724
n3
9.5847587041657E+21
n4
2.0359865844368E+29
n5
4.3248260075706E+36
2 √n
4608.8955292998
3 √n
276.94779346893
4 √n
67.888846869717
5 √n
29.20375831226
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
-21241917
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 21241918 can be divided by 4 positive divisors.
The sum of these divisors (counting 21241918) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000010000000111110
3
Ternary
1110222012102201
4
Quaternary
1101002000332
5
Quinary
20414220133
6
Senary
2035142114
8
Octal
121020076
10
Decimal
21241918
12
Duodecimal
714493a
16
Hexadecimal
144203e
20
Vigesimal
6cf4fi
36
Base36
cnada
md5
f0af620f5b8ccff79ce29b6007009719
sha1
a151f01d772f091048800d73c16f3a0fe28e8557
sha256
5bf8f88f920ec425e65515abc90c02fe97742c11670e56ae9343c1c25cdaab8a
sha512
60632469642800e70ac295d451ccc9b7871292c3e5b3d580ffe209a0de5d9fe648280b0d0c73f858d3dac72d7e7a1cdd788e0db100e760932426eb1144885aea
ripemd-160
83af87ccf6d5279207cabb4b1851cfeb413258a0
Diameter
42483836
Circumference
133466907.07391
Area
1.4175465478888E+15
Volume
4.0148543375251E+22
Surface area
5.6701861915554E+15
Circumference
133466907.07391
Perimeter
84967672
Area
451219080318724
Diagonal
30040608.526417
Surface area
2707314481912344
Volume
9.5847587041657E+21
Space diagonal
36792081.226212
Perimeter
63725754
Area
1.9538359311413E+14
Altitude
18396040.613106
Surface area
1.9538359311413E+14
Volume
1.1295746459587E+21
Height
10013536.175472