20121361 is an odd 8-digits composite number following 20121360
and preceding 20121362 . In scientific notation, it is written as 2.0121361 × 10^7.
The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors.
There are 17595792 positive integers (up to 20121361) that are relatively prime to 20121361.
20121361 has 8 divisors, whose sum is 22809920
The reverse of 20121361 is 16312102
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million one hundred twenty-one thousand three hundred sixty-one
Scientific notation
2.0121361 × 10^7
Engineering notation
2.0121361 × 10^6
Prime Factorization
19 × 13 × 81463
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121361
Product of the distinct prime numbers
The prime factorization of 20121361 is 19 × 13 × 81463.
Since it has a total of 3 prime factors.
5 , 4 , 81 , 26 , 112 , 565 , 4771 , 1468 , 96839 , 28251 , 622882 , 364608 , 3237054 , 7952328 , 63613642 , 54881573 , 866777803 , 368008618 , 2512690010 , 4708529388
n×2
40242722
n×3
60364083
n×4
80485444
n×5
100606805
n÷2
10060680.5
n÷3
6707120.3333333
n÷3
5030340.25
n÷5
4024272.2
n2
404869168492321
n3
8.1465186970038E+21
n4
1.6391904359566E+29
n5
3.2982742509631E+36
2 √n
4485.6840058123
3 √n
271.98969557993
4 √n
66.975249203062
5 √n
28.888930931767
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
-20121360
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 20121361 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121361) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011100010001
3
Ternary
1101212021022121
4
Quaternary
1030300130101
5
Quinary
20122340421
6
Senary
1555134241
8
Octal
114603421
10
Decimal
20121361
12
Duodecimal
68a4381
16
Hexadecimal
1330711
20
Vigesimal
65f381
36
Base36
bz9qp
md5
d43fc04a2b67f6eb350d95635cd4f877
sha1
14b12f92be628d7551cd3ed1f3dba1c8aa9bb77f
sha256
9b2b34d154192dd37bb49f4ed40ca3ce774caf0c7a9a5100b7fadd896d48336a
sha512
7e58e87a3363166fd2268641e3097de2ab5b10f11234ba53bd8ba08505e127649af78761c9920d8238954e2a7709835f4cef1d983342dca6ccc76b05bcadd49e
ripemd-160
027bacf07f2b4ee6cc33f264b28636dac1609925
Diameter
40242722
Circumference
126426239.79566
Area
1.2719340054005E+15
Volume
3.4124057721119E+22
Surface area
5.0877360216019E+15
Circumference
126426239.79566
Perimeter
80485444
Area
404869168492321
Diagonal
28455901.619605
Surface area
2429215010953926
Volume
8.1465186970038E+21
Space diagonal
34851219.569435
Perimeter
60364083
Area
1.7531349256172E+14
Altitude
17425609.784717
Surface area
1.7531349256172E+14
Volume
9.6007643561907E+20
Height
9485300.5398684