21243847 is an odd 8-digits composite number following 21243846
and preceding 21243848 . In scientific notation, it is written as 2.1243847 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 21136896 positive integers (up to 21243847) that are relatively prime to 21243847.
21243847 has 4 divisors, whose sum is 21350800
The reverse of 21243847 is 74834212
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million two hundred forty-three thousand eight hundred forty-seven
Scientific notation
2.1243847 × 10^7
Engineering notation
2.1243847 × 10^6
Prime Factorization
199 × 106753
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21243847
Product of the distinct prime numbers
The prime factorization of 21243847 is 199 × 106753.
Since it has a total of 2 prime factors.
1 , 4 , 29 , 37 , 780 , 370 , 1193 , 2336 , 193 , 8843 , 204911 , 533049 , 4951775 , 7705915 , 44398025 , 33648107 , 41992211 , 611916895 , 5297362466 , 5547283151
n×2
42487694
n×3
63731541
n×4
84975388
n×5
106219235
n÷2
10621923.5
n÷3
7081282.3333333
n÷3
5310961.75
n÷5
4248769.4
n2
451301035359409
n3
9.5873701461169E+21
n4
2.0367262451647E+29
n5
4.3267900733164E+36
2 √n
4609.104793775
3 √n
276.95617651801
4 √n
67.890388080899
5 √n
29.204288697544
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
-21243846
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 21243847 can be divided by 4 positive divisors.
The sum of these divisors (counting 21243847) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000010011111000111
3
Ternary
1110222022002011
4
Quaternary
1101002133013
5
Quinary
20414300342
6
Senary
2035155051
8
Octal
121023707
10
Decimal
21243847
12
Duodecimal
7145a87
16
Hexadecimal
14427c7
20
Vigesimal
6cf9c7
36
Base36
cnbuv
md5
2cdc99462a004499b70466fdae2f18c9
sha1
cff3f05c481b1e19c8f0fc078dd0edbe4d6a5766
sha256
130370e02f6a5c7e07881855ce29ba1c52b3c70136e610cd9ec52c215b045f0f
sha512
14579b3c0e45173e2b1954cc88a464364941276dbc2b05695f567ea62e2c6c036f8053879095c1fb9630e42a7570ae4e7b4dbc0f43fd0aefb90cc69e81312324
ripemd-160
d222955b4f77abe586f20977ba813447463e113f
Diameter
42487694
Circumference
133479027.33837
Area
1.4178040172426E+15
Volume
4.0159482157716E+22
Surface area
5.6712160689703E+15
Circumference
133479027.33837
Perimeter
84975388
Area
451301035359409
Diagonal
30043336.544379
Surface area
2707806212156454
Volume
9.5873701461169E+21
Space diagonal
36795422.35222
Perimeter
63731541
Area
1.9541908068773E+14
Altitude
18397711.17611
Surface area
1.9541908068773E+14
Volume
1.1298824073441E+21
Height
10014445.514793