20851839 is an odd 8-digits composite number following 20851838
and preceding 20851840 . In scientific notation, it is written as 2.0851839 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 24 positive divisors.
There are 13501008 positive integers (up to 20851839) that are relatively prime to 20851839.
20851839 has 24 divisors, whose sum is 31000320
The reverse of 20851839 is 93815802
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million eight hundred fifty-one thousand eight hundred thirty-nine
Scientific notation
2.0851839 × 10^7
Engineering notation
2.0851839 × 10^6
Prime Factorization
3 × 3 × 107 × 59 × 367
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
6950613
Product of the distinct prime numbers
The prime factorization of 20851839 is 3 × 3 × 107 × 59 × 367.
Since it has a total of 5 prime factors.
9 , 3 , 68 , 43 , 13 , 287 , 8917 , 4016 , 33734 , 86779 , 966346 , 140281 , 3197006 , 5997976 , 10571798 , 77960262 , 258408194 , 501561460 , 9620290785 , 8496405576
n×2
41703678
n×3
62555517
n×4
83407356
n×5
104259195
n÷2
10425919.5
n÷3
6950613
n÷3
5212959.75
n÷5
4170367.8
n2
434799189681921
n3
9.0663627005779E+21
n4
1.8905033534806E+29
n5
3.9420471555737E+36
2 √n
4566.3813901162
3 √n
275.24205244991
4 √n
67.575005661237
5 √n
29.095704184421
1 , 3 , 9 , 59 , 107 , 177 , 321 , 367 , 531 , 963 , 1101 , 3303 , 6313 , 18939 , 21653 , 39269 , 56817 , 64959 , 117807 , 194877 , 353421 , 2316871 , 6950613 , 20851839
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20851838
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20851839 can be divided by 24 positive divisors.
The sum of these divisors (counting 20851839) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001111100010110001111111
3
Ternary
1110020101100100
4
Quaternary
1033202301333
5
Quinary
20314224324
6
Senary
2022532143
8
Octal
117426177
10
Decimal
20851839
12
Duodecimal
6b97053
16
Hexadecimal
13e2c7f
20
Vigesimal
6a69bj
36
Base36
cexdr
md5
beafef42eb9f593324c26afbdb355951
sha1
d829efbb08ad8babc74a134da92ceda5cccc85ce
sha256
aedd277ef9870cdc9dcbc4c5b90a3da9121cafa04dee7de35d6c42c1da4c5ca3
sha512
0c0f398c31e5afb300b3f8e1e5a3c4a29813613e4e38ed2da9db1a8a8c997c537581103a79d94603985b521eae79cf80df06a84a386fb07945b7543a6b91ab9a
ripemd-160
2c4a8897403c07eea15ecdd234eb66c7b4b8ab97
Diameter
41703678
Circumference
131015968.43247
Area
1.3659619400915E+15
Volume
3.7977091273221E+22
Surface area
5.4638477603661E+15
Circumference
131015968.43247
Perimeter
83407356
Area
434799189681921
Diagonal
29488953.51422
Surface area
2608795138091526
Volume
9.0663627005779E+21
Space diagonal
36116444.579246
Perimeter
62555517
Area
1.8827357190472E+14
Altitude
18058222.289623
Surface area
1.8827357190472E+14
Volume
1.0684810910459E+21
Height
9829651.1714067