20125821 is an odd 8-digits composite number following 20125820
and preceding 20125822 . In scientific notation, it is written as 2.0125821 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 13417212 positive integers (up to 20125821) that are relatively prime to 20125821.
20125821 has 4 divisors, whose sum is 26834432
The reverse of 20125821 is 12852102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred twenty-five thousand eight hundred twenty-one
Scientific notation
2.0125821 × 10^7
Engineering notation
2.0125821 × 10^6
Prime Factorization
3 × 6708607
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20125821
Product of the distinct prime numbers
The prime factorization of 20125821 is 3 × 6708607.
Since it has a total of 2 prime factors.
8 , 3 , 33 , 36 , 541 , 433 , 5311 , 5835 , 44582 , 8868 , 563103 , 239845 , 5072537 , 3420659 , 4969845 , 85122782 , 522127763 , 752599994 , 9561420837 , 9049394078
n×2
40251642
n×3
60377463
n×4
80503284
n×5
100629105
n÷2
10062910.5
n÷3
6708607
n÷3
5031455.25
n÷5
4025164.2
n2
405048670924041
n3
8.1519370473052E+21
n4
1.6406442581733E+29
n5
3.3019312664674E+36
2 √n
4486.1811153809
3 √n
272.00979005276
4 √n
66.978960244101
5 √n
28.890211493354
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
-20125820
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 20125821 can be divided by 4 positive divisors.
The sum of these divisors (counting 20125821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110001100001111101
3
Ternary
1101212111102210
4
Quaternary
1030301201331
5
Quinary
20123011241
6
Senary
1555211033
8
Octal
114614175
10
Decimal
20125821
12
Duodecimal
68a6a79
16
Hexadecimal
133187d
20
Vigesimal
65feb1
36
Base36
bzd6l
md5
60066ce8a091a153523cfdf1d7f06fdd
sha1
cf434ffec2ef1833d7403a297380ebf86b9e1fe1
sha256
b6b663bb4de18bc53788221260e2ff5d99892e91206e7495523a541ba6088f2e
sha512
4c2b83e270591927e2425492fcb5f67fd75c9f7daf938c7e38f2900d7bb05cfc933ea0943fe749a9b8703289ddacab556f68ee76537c89922fe39ddd6732f2f7
ripemd-160
b675e94e2350d385e192e73557f22e897c167284
Diameter
40251642
Circumference
126454262.80213
Area
1.2724979289213E+15
Volume
3.4146754053787E+22
Surface area
5.0899917156851E+15
Circumference
126454262.80213
Perimeter
80503284
Area
405048670924041
Diagonal
28462209.012093
Surface area
2430292025544246
Volume
8.1519370473052E+21
Space diagonal
34858944.516037
Perimeter
60377463
Area
1.7539121939467E+14
Altitude
17429472.258018
Surface area
1.7539121939467E+14
Volume
9.6071499432589E+20
Height
9487403.0040311