20210825 is an odd 8-digits composite number following 20210824
and preceding 20210826 . In scientific notation, it is written as 2.0210825 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 15321600 positive integers (up to 20210825) that are relatively prime to 20210825.
20210825 has 16 divisors, whose sum is 25226640
The reverse of 20210825 is 52801202
Previous prime number is 305
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million two hundred ten thousand eight hundred twenty-five
Scientific notation
2.0210825 × 10^7
Engineering notation
2.0210825 × 10^6
Prime Factorization
29 × 5 × 305 × 457
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20210825
Product of the distinct prime numbers
The prime factorization of 20210825 is 29 × 5 × 305 × 457.
Since it has a total of 4 prime factors.
8 , 6 , 55 , 9 , 435 , 902 , 1766 , 2814 , 52384 , 52393 , 343696 , 679389 , 7959987 , 4136633 , 26264194 , 93967032 , 967956284 , 291065991 , 1635123805 , 4584398325
n×2
40421650
n×3
60632475
n×4
80843300
n×5
101054125
n÷2
10105412.5
n÷3
6736941.6666667
n÷3
5052706.25
n÷5
4042165
n2
408477447180625
n3
8.2556662014144E+21
n4
1.668538248552E+29
n5
3.3722534547291E+36
2 √n
4495.6451149974
3 √n
272.39220829977
4 √n
67.049572071695
5 √n
28.9145746743
1 , 5 , 29 , 145 , 305 , 457 , 1525 , 2285 , 8845 , 13253 , 44225 , 66265 , 139385 , 696925 , 4042165 , 20210825
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20210824
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20210825 can be divided by 16 positive divisors.
The sum of these divisors (counting 20210825) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000110010010001001
3
Ternary
1102000211001002
4
Quaternary
1031012102021
5
Quinary
20133221300
6
Senary
2001104345
8
Octal
115062211
10
Decimal
20210825
12
Duodecimal
69280b5
16
Hexadecimal
1346489
20
Vigesimal
666715
36
Base36
c16rt
md5
09a3eda79cc65e5e04567392991761fd
sha1
c67060a2f1335133f92e55ead4b3bc514d2bac93
sha256
af21685d0633c4d8dea9a0a90a07c2d7f6a163b5dd8fd4f37e26f1d240d6a2a2
sha512
38b051e5d5bca1256e644045f98c8a4843c3dcee2b3260c192f16da85369fadfd771099689c38dfd9cc845197562884eed8480b1fc0e00af4c13160a97d0b811
ripemd-160
1d00c8e23e3d532cb9c37233f1fed424bd9ab886
Diameter
40421650
Circumference
126988358.68598
Area
1.2832697472198E+15
Volume
3.4581253718471E+22
Surface area
5.1330789888791E+15
Circumference
126988358.68598
Perimeter
80843300
Area
408477447180625
Diagonal
28582422.821749
Surface area
2450864683083750
Volume
8.2556662014144E+21
Space diagonal
35006175.762883
Perimeter
60632475
Area
1.7687592306572E+14
Altitude
17503087.881442
Surface area
1.7687592306572E+14
Volume
9.7293959237211E+20
Height
9527474.2739164