20120865 is an odd 8-digits composite number following 20120864
and preceding 20120866 . In scientific notation, it is written as 2.0120865 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 10670400 positive integers (up to 20120865) that are relatively prime to 20120865.
20120865 has 16 divisors, whose sum is 32375616
The reverse of 20120865 is 56802102
Previous prime number is 181
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred twenty thousand eight hundred sixty-five
Scientific notation
2.0120865 × 10^7
Engineering notation
2.0120865 × 10^6
Prime Factorization
3 × 5 × 181 × 7411
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20120865
Product of the distinct prime numbers
The prime factorization of 20120865 is 3 × 5 × 181 × 7411.
Since it has a total of 4 prime factors.
3 , 2 , 3 , 8 , 829 , 139 , 234 , 8644 , 45159 , 18311 , 546316 , 367641 , 8135135 , 7529009 , 46752327 , 57981635 , 767451752 , 358055447 , 6788232059 , 1646005113
n×2
40241730
n×3
60362595
n×4
80483460
n×5
100604325
n÷2
10060432.5
n÷3
6706955
n÷3
5030216.25
n÷5
4024173
n2
404849208348225
n3
8.1459162665315E+21
n4
1.6390288150018E+29
n5
3.2978677517762E+36
2 √n
4485.6287184741
3 √n
271.98746067482
4 √n
66.974836457241
5 √n
28.888788505506
1 , 3 , 5 , 15 , 181 , 543 , 905 , 2715 , 7411 , 22233 , 37055 , 111165 , 1341391 , 4024173 , 6706955 , 20120865
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20120864
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20120865 can be divided by 16 positive divisors.
The sum of these divisors (counting 20120865) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000010100100001
3
Ternary
1101212020122020
4
Quaternary
1030300110201
5
Quinary
20122331430
6
Senary
1555132053
8
Octal
114602441
10
Decimal
20120865
12
Duodecimal
68a4029
16
Hexadecimal
1330521
20
Vigesimal
65f235
36
Base36
bz9cx
md5
0076d947ed81512de3e80e2ade9aa81b
sha1
cb64072506b1f4bb835eeeaa6d8e30ad00b93e98
sha256
26d7685bca16217f2faeffb0713f4d436b4b3b964bd3a7440e47e5d70a52b3a5
sha512
75978f2880c0e1f38c838ca015bb8b9094d451df87d4fcea40c59f9ae0bbc9eadd49c9cfe6f864722e3fd54b7bec8a5879ad7e876e47d74aac696d104e30ea80
ripemd-160
33b64b012abe5c496f5683141d8fcce32704ff35
Diameter
40241730
Circumference
126423123.33574
Area
1.2718712987584E+15
Volume
3.4121534266257E+22
Surface area
5.0874851950337E+15
Circumference
126423123.33574
Perimeter
80483460
Area
404849208348225
Diagonal
28455200.169678
Surface area
2429095250089350
Volume
8.1459162665315E+21
Space diagonal
34850360.472234
Perimeter
60362595
Area
1.7530484956579E+14
Altitude
17425180.236117
Surface area
1.7530484956579E+14
Volume
9.6000543850704E+20
Height
9485066.723226