20854921 is an odd 8-digits prime number following 20854920
and preceding 20854922 . In scientific notation, it is written as 2.0854921 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 20854920 positive integers (up to 20854921) that are relatively prime to 20854921.
20854921 has 2 divisors, whose sum is 20854922
The reverse of 20854921 is 12945802
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eight hundred fifty-four thousand nine hundred twenty-one
Scientific notation
2.0854921 × 10^7
Engineering notation
2.0854921 × 10^6
Prime Factorization
20854921
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20854921
Product of the distinct prime numbers
The prime factorization of 20854921 is 20854921.
Since it has a total of 1 prime factors.
8 , 10 , 100 , 71 , 19 , 562 , 5153 , 9716 , 11620 , 6358 , 23821 , 686773 , 3978144 , 903009 , 76996432 , 37207018 , 324005956 , 13640521 , 5761909254 , 6623188390
n×2
41709842
n×3
62564763
n×4
83419684
n×5
104274605
n÷2
10427460.5
n÷3
6951640.3333333
n÷3
5213730.25
n÷5
4170984.2
n2
434927729916241
n3
9.0703834481125E+21
n4
1.8916213025009E+29
n5
3.9449612825574E+36
2 √n
4566.7188439842
3 √n
275.25561247236
4 √n
67.577502498865
5 √n
29.096564229994
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20854922
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10427461
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4566.718953472
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999040994
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20854921 can be divided by 2 positive divisors.
The sum of these divisors (counting 20854921) is 20854922, the average is 10427461.
Base
System
Value
2
Binary
1001111100011100010001001
3
Ternary
1110020112120111
4
Quaternary
1033203202021
5
Quinary
20314324141
6
Senary
2022554321
8
Octal
117434211
10
Decimal
20854921
12
Duodecimal
6b989a1
16
Hexadecimal
13e3889
20
Vigesimal
6a6h61
36
Base36
cezrd
md5
b2aa1fb920477e6c342a4c77dc7b3557
sha1
31c3d514bc3422aa0c17ebe51589ebd76c0e5d24
sha256
62c40e6f677927fc162d898aa75e23a86bcde8989eae670e705b3ef4c3844dd1
sha512
f8a58c288de9a7d69baa1243322a15a5b23aba2a8232589d41635fcb8d92eb8f8d78f4d3f37cab379cf3c50752ac8d89986bf53b3b98f78d31c173a34326b99b
ripemd-160
a9ba213fc071da9ac503d8b7876014476849db7d
Diameter
41709842
Circumference
131035333.20959
Area
1.3663657611473E+15
Volume
3.799393334111E+22
Surface area
5.4654630445894E+15
Circumference
131035333.20959
Perimeter
83419684
Area
434927729916241
Diagonal
29493312.120419
Surface area
2609566379497446
Volume
9.0703834481125E+21
Space diagonal
36121782.759835
Perimeter
62564763
Area
1.8832923145888E+14
Altitude
18060891.379918
Surface area
1.8832923145888E+14
Volume
1.0689549406871E+21
Height
9831104.0401398