20121238 is an even 8-digits composite number following 20121237
and preceding 20121239 . In scientific notation, it is written as 2.0121238 × 10^7.
The sum of its digits is 19. It has a total of 3 prime factors and 8 positive divisors.
There are 9870744 positive integers (up to 20121238) that are relatively prime to 20121238.
20121238 has 8 divisors, whose sum is 30751488
The reverse of 20121238 is 83212102
Previous prime number is 53
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million one hundred twenty-one thousand two hundred thirty-eight
Scientific notation
2.0121238 × 10^7
Engineering notation
2.0121238 × 10^6
Prime Factorization
2 × 53 × 189823
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121238
Product of the distinct prime numbers
The prime factorization of 20121238 is 2 × 53 × 189823.
Since it has a total of 3 prime factors.
5 , 1 , 31 , 56 , 928 , 465 , 7405 , 9572 , 78946 , 74292 , 108288 , 400697 , 1177371 , 8242911 , 79899622 , 61882701 , 603636309 , 799295654 , 110879448 , 9164493625
n×2
40242476
n×3
60363714
n×4
80484952
n×5
100606190
n÷2
10060619
n÷3
6707079.3333333
n÷3
5030309.5
n÷5
4024247.6
n2
404864218652644
n3
8.1463693011939E+21
n4
1.6391503554522E+29
n5
3.2981734419837E+36
2 √n
4485.6702955077
3 √n
271.98914136294
4 √n
66.975146849467
5 √n
28.888895612614
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
-20121237
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 20121238 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121238) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011010010110
3
Ternary
1101212021011001
4
Quaternary
1030300122112
5
Quinary
20122334423
6
Senary
1555133514
8
Octal
114603226
10
Decimal
20121238
12
Duodecimal
68a429a
16
Hexadecimal
1330696
20
Vigesimal
65f31i
36
Base36
bz9na
md5
481ef906c2ee580b74bf3f0fa4c58796
sha1
01ff32b7e125caff23e1cf521c2ea4414b844605
sha256
4eb5555df472902c9de4438d56741f0de34a844a9edc4d0424ffa6c1741115a7
sha512
5aef0cbd80ec8854c5cdd7b5f4ebc1d1c7bae7804b2f07f96b6845592d919085f03e6d22911011477abca5e9e52632c0d1fa78d3b53bad4546002bce3661bfbf
ripemd-160
64afdb8baeb31366d019548ff78efbf2f52d4e1d
Diameter
40242476
Circumference
126425466.96386
Area
1.2719184550205E+15
Volume
3.4123431933414E+22
Surface area
5.0876738200821E+15
Circumference
126425466.96386
Perimeter
80484952
Area
404864218652644
Diagonal
28455727.671337
Surface area
2429185311915864
Volume
8.1463693011939E+21
Space diagonal
34851006.527186
Perimeter
60363714
Area
1.7531134921826E+14
Altitude
17425503.263593
Surface area
1.7531134921826E+14
Volume
9.6005882915402E+20
Height
9485242.5571123