20121081 is an odd 8-digits composite number following 20121080
and preceding 20121082 . In scientific notation, it is written as 2.0121081 × 10^7.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 12282624 positive integers (up to 20121081) that are relatively prime to 20121081.
20121081 has 8 divisors, whose sum is 21072064
The reverse of 20121081 is 18012102
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million one hundred twenty-one thousand eighty-one
Scientific notation
2.0121081 × 10^7
Engineering notation
2.0121081 × 10^6
Prime Factorization
51 × 37 × 10663
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121081
Product of the distinct prime numbers
The prime factorization of 20121081 is 51 × 37 × 10663.
Since it has a total of 3 prime factors.
7 , 8 , 42 , 5 , 935 , 589 , 7461 , 2804 , 3803 , 10079 , 579623 , 609099 , 3560067 , 6030769 , 6518008 , 82618952 , 600855233 , 243486636 , 986261807 , 4163392873
n×2
40242162
n×3
60363243
n×4
80484324
n×5
100605405
n÷2
10060540.5
n÷3
6707027
n÷3
5030270.25
n÷5
4024216.2
n2
404857900608561
n3
8.1461786116348E+21
n4
1.6390991968517E+29
n5
3.2980447706888E+36
2 √n
4485.6527953019
3 √n
271.98843394447
4 √n
66.975016202327
5 √n
28.888850530191
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
-20121080
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 20121081 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121081) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000010111111001
3
Ternary
1101212020221020
4
Quaternary
1030300113321
5
Quinary
20122333311
6
Senary
1555133053
8
Octal
114602771
10
Decimal
20121081
12
Duodecimal
68a4189
16
Hexadecimal
13305f9
20
Vigesimal
65f2e1
36
Base36
bz9ix
md5
8f4f3ca328aa700a9b2c8c5ad0126ca1
sha1
2dfaaf757191b68228a317acb9fdc445f0c1f25d
sha256
df873aff0977b1c54d0a2d813c292859a94ec837d546a69dc8d02e77ebc8dc92
sha512
048d12d915dcd084b15b47c264406a120ba4a7444cc5290d3df312ef412017faa4edc5ab0963703281c4d217978035ac4f7de63f65500203d719ddb0db59a20a
ripemd-160
916d932812dc45f9a45d825774817ca2b31605f2
Diameter
40242162
Circumference
126424480.50377
Area
1.2718986062996E+15
Volume
3.4122633174856E+22
Surface area
5.0875944251986E+15
Circumference
126424480.50377
Perimeter
80484324
Area
404857900608561
Diagonal
28455505.639808
Surface area
2429147403651366
Volume
8.1461786116348E+21
Space diagonal
34850734.595209
Perimeter
60363243
Area
1.7530861342492E+14
Altitude
17425367.297604
Surface area
1.7530861342492E+14
Volume
9.6003635617396E+20
Height
9485168.5466025