21016819 is an odd 8-digits composite number following 21016818
and preceding 21016820 . In scientific notation, it is written as 2.1016819 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 21003696 positive integers (up to 21016819) that are relatively prime to 21016819.
21016819 has 4 divisors, whose sum is 21029944
The reverse of 21016819 is 91861012
Previous prime number is 1867
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million sixteen thousand eight hundred nineteen
Scientific notation
2.1016819 × 10^7
Engineering notation
2.1016819 × 10^6
Prime Factorization
1867 × 11257
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21016819
Product of the distinct prime numbers
The prime factorization of 21016819 is 1867 × 11257.
Since it has a total of 2 prime factors.
3 , 8 , 12 , 22 , 242 , 248 , 8780 , 4482 , 39481 , 21689 , 331821 , 311952 , 5074992 , 2069690 , 27054980 , 18532348 , 159156406 , 967503394 , 9119199779 , 4390513813
n×2
42033638
n×3
63050457
n×4
84067276
n×5
105084095
n÷2
10508409.5
n÷3
7005606.3333333
n÷3
5254204.75
n÷5
4203363.8
n2
441706680878761
n3
9.2832693631197E+21
n4
1.9510479193293E+29
n5
4.1004820980871E+36
2 √n
4584.4104310151
3 √n
275.96605250046
4 √n
67.708274464906
5 √n
29.141600273224
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
-21016818
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 21016819 can be divided by 4 positive divisors.
The sum of these divisors (counting 21016819) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001011000011110011
3
Ternary
1110112202122201
4
Quaternary
1100023003303
5
Quinary
20340014234
6
Senary
2030244031
8
Octal
120130363
10
Decimal
21016819
12
Duodecimal
7056617
16
Hexadecimal
140b0f3
20
Vigesimal
6b720j
36
Base36
cigoj
md5
a7cc1d9f61020cd329cedba7473ef34a
sha1
2e0d73aa5ba5fe1b9f7ee1cc676522f73de8929e
sha256
f5868215a41e0af0c1b8834a8f3298e25d0c72762e2db37af07c916734c6c04b
sha512
23901dda68bf90e1e86c7a61719a13f5fcc7f68a4b9299fa4f40acd7858c63d064675082d7a424d502614ac09d6f0e70a432235c1e34b2bc13d1d0b61da1142b
ripemd-160
ba662a49b25578f4f227297f69854faf70ceebdf
Diameter
42033638
Circumference
132052568.34445
Area
1.3876624636902E+15
Volume
3.8885667776629E+22
Surface area
5.550649854761E+15
Circumference
132052568.34445
Perimeter
84067276
Area
441706680878761
Diagonal
29722270.467741
Surface area
2650240085272566
Volume
9.2832693631197E+21
Space diagonal
36402198.321479
Perimeter
63050457
Area
1.9126460333116E+14
Altitude
18201099.160739
Surface area
1.9126460333116E+14
Volume
1.0940437863739E+21
Height
9907423.4892469