20854821 is an odd 8-digits composite number following 20854820
and preceding 20854822 . In scientific notation, it is written as 2.0854821 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 12833712 positive integers (up to 20854821) that are relatively prime to 20854821.
20854821 has 8 divisors, whose sum is 29945440
The reverse of 20854821 is 12845802
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million eight hundred fifty-four thousand eight hundred twenty-one
Scientific notation
2.0854821 × 10^7
Engineering notation
2.0854821 × 10^6
Prime Factorization
3 × 13 × 534739
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20854821
Product of the distinct prime numbers
The prime factorization of 20854821 is 3 × 13 × 534739.
Since it has a total of 3 prime factors.
7 , 9 , 63 , 36 , 762 , 150 , 6844 , 3501 , 14243 , 57059 , 677737 , 676207 , 2180625 , 6394061 , 69712765 , 35575919 , 290523697 , 656219758 , 3591457186 , 6629045057
n×2
41709642
n×3
62564463
n×4
83419284
n×5
104274105
n÷2
10427410.5
n÷3
6951607
n÷3
5213705.25
n÷5
4170964.2
n2
434923558942041
n3
9.0702529704192E+21
n4
1.8915850212281E+29
n5
3.9448667023993E+36
2 √n
4566.707895191
3 √n
275.25517251856
4 √n
67.577421489659
5 √n
29.096536326153
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
-20854820
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 20854821 can be divided by 8 positive divisors.
The sum of these divisors (counting 20854821) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111100011100000100101
3
Ternary
1110020112102210
4
Quaternary
1033203200211
5
Quinary
20314323241
6
Senary
2022554033
8
Octal
117434045
10
Decimal
20854821
12
Duodecimal
6b98919
16
Hexadecimal
13e3825
20
Vigesimal
6a6h11
36
Base36
cezol
md5
6816feeba0d1862a6ccc4158a3c787c6
sha1
745f9d309466bc87cbbb5e5dd7fb99ff3b3cd061
sha256
04fc372886b2840709a0128b7520c848e0c7f80c799677fd29798a4e413b5348
sha512
10a6b54a68849be5d19c9e62186fcab1910130eb723c6501365fb51c35d6c8489d824362dc65e279347b016bc37313e0ea10fdb032637d67b64103f8808b03b3
ripemd-160
1d0347b4f9bfe484ba72654ca22efd6ea0b07b91
Diameter
41709642
Circumference
131034704.89106
Area
1.3663526576454E+15
Volume
3.7993386797427E+22
Surface area
5.4654106305818E+15
Circumference
131034704.89106
Perimeter
83419284
Area
434923558942041
Diagonal
29493170.699063
Surface area
2609541353652246
Volume
9.0702529704192E+21
Space diagonal
36121609.554754
Perimeter
62564463
Area
1.8832742537407E+14
Altitude
18060804.777377
Surface area
1.8832742537407E+14
Volume
1.0689395637435E+21
Height
9831056.8996877