20120861 is an odd 8-digits composite number following 20120860
and preceding 20120862 . In scientific notation, it is written as 2.0120861 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 19652892 positive integers (up to 20120861) that are relatively prime to 20120861.
20120861 has 4 divisors, whose sum is 20588832
The reverse of 20120861 is 16802102
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred twenty thousand eight hundred sixty-one
Scientific notation
2.0120861 × 10^7
Engineering notation
2.0120861 × 10^6
Prime Factorization
43 × 467927
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20120861
Product of the distinct prime numbers
The prime factorization of 20120861 is 43 × 467927.
Since it has a total of 2 prime factors.
9 , 9 , 98 , 79 , 858 , 894 , 2238 , 8420 , 36515 , 25154 , 394604 , 335301 , 1989753 , 1756683 , 5587818 , 26247827 , 260370610 , 657145142 , 2926045200 , 6120716367
n×2
40241722
n×3
60362583
n×4
80483444
n×5
100604305
n÷2
10060430.5
n÷3
6706953.6666667
n÷3
5030215.25
n÷5
4024172.2
n2
404849047381321
n3
8.145911408342E+21
n4
1.6390275116556E+29
n5
3.2978644737199E+36
2 √n
4485.6282726057
3 √n
271.98744265125
4 √n
66.974833128614
5 √n
28.888787356896
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
-20120860
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 20120861 can be divided by 4 positive divisors.
The sum of these divisors (counting 20120861) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000010100011101
3
Ternary
1101212020122002
4
Quaternary
1030300110131
5
Quinary
20122331421
6
Senary
1555132045
8
Octal
114602435
10
Decimal
20120861
12
Duodecimal
68a4025
16
Hexadecimal
133051d
20
Vigesimal
65f231
36
Base36
bz9ct
md5
7ce1e13f58b54799cb02039a40d6ed8d
sha1
126c2289124fbabf9dbc7f71f37c1665173d71cd
sha256
e326103c38ad4532efc29bb712f7a7728c45f7a07b7b8d7e13dd10ca98550fa9
sha512
ef3e714b28f8bbf5cb0876af18f3f07d0131b86d50cc6b14c821f7edce3981380e9492f692ae0e0d97ae8f650557c324bae596400acefaa41583512d8766b826
ripemd-160
b57ffc1441c85cc6a0d52f650f1463c8c6e15f31
Diameter
40241722
Circumference
126423098.203
Area
1.271870793066E+15
Volume
3.4121513916321E+22
Surface area
5.0874831722639E+15
Circumference
126423098.203
Perimeter
80483444
Area
404849047381321
Diagonal
28455194.512824
Surface area
2429094284287926
Volume
8.145911408342E+21
Space diagonal
34850353.544031
Perimeter
60362583
Area
1.7530477986508E+14
Altitude
17425176.772016
Surface area
1.7530477986508E+14
Volume
9.6000486596391E+20
Height
9485064.837608