21356819 is an odd 8-digits composite number following 21356818
and preceding 21356820 . In scientific notation, it is written as 2.1356819 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 19382760 positive integers (up to 21356819) that are relatively prime to 21356819.
21356819 has 8 divisors, whose sum is 23337408
The reverse of 21356819 is 91865312
Previous prime number is 2467
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million three hundred fifty-six thousand eight hundred nineteen
Scientific notation
2.1356819 × 10^7
Engineering notation
2.1356819 × 10^6
Prime Factorization
11 × 2467 × 787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21356819
Product of the distinct prime numbers
The prime factorization of 21356819 is 11 × 2467 × 787.
Since it has a total of 3 prime factors.
10 , 7 , 9 , 40 , 612 , 5 , 3379 , 7646 , 73232 , 96133 , 5664 , 450698 , 6533381 , 6271427 , 9062773 , 88263296 , 200696292 , 605465748 , 3349399512 , 9981450149
n×2
42713638
n×3
64070457
n×4
85427276
n×5
106784095
n÷2
10678409.5
n÷3
7118939.6666667
n÷3
5339204.75
n÷5
4271363.8
n2
456113717798761
n3
9.7411381144452E+21
n4
2.0803972356421E+29
n5
4.4430667209708E+36
2 √n
4621.3438521711
3 √n
277.4462477388
4 √n
67.980466695744
5 √n
29.235283753989
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21356818
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21356819 can be divided by 8 positive divisors.
The sum of these divisors (counting 21356819) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001011110000100010011
3
Ternary
1111012001001022
4
Quaternary
1101132010103
5
Quinary
20431404234
6
Senary
2041430055
8
Octal
121360423
10
Decimal
21356819
12
Duodecimal
719b32b
16
Hexadecimal
145e113
20
Vigesimal
6d9c0j
36
Base36
cpr0z
md5
9f190f5c1e7839b7d9943f4ee226c176
sha1
acc9aa40c8b05fb7d9dc9a1bb8cd547ea336c8d8
sha256
c34ff5b8dbb726d6ca5fda735b4f8f12bfebc6dffbc2eaa31d6e0ff74628fd60
sha512
4119814cc6d944e606260c7bf752d50d20c7237460283d522b8517b67d6431973ed3d56d563579ac80b51e38fcd20c355c7d91c451c75bd03e8ab1fee1bee98c
ripemd-160
c513a066e62c8cd09ed74225f35272766052b24b
Diameter
42713638
Circumference
134188851.34889
Area
1.4329235050381E+15
Volume
4.0803583917259E+22
Surface area
5.7316940201525E+15
Circumference
134188851.34889
Perimeter
85427276
Area
456113717798761
Diagonal
30203103.078947
Surface area
2736682306792566
Volume
9.7411381144452E+21
Space diagonal
36991095.596052
Perimeter
64070457
Area
1.9750303331415E+14
Altitude
18495547.798026
Surface area
1.9750303331415E+14
Volume
1.1480041361998E+21
Height
10067701.026316