20120642 is an even 8-digits composite number following 20120641
and preceding 20120643 . In scientific notation, it is written as 2.0120642 × 10^7.
The sum of its digits is 17. It has a total of 3 prime factors and 8 positive divisors.
There are 9986752 positive integers (up to 20120642) that are relatively prime to 20120642.
20120642 has 8 divisors, whose sum is 30401676
The reverse of 20120642 is 24602102
Previous prime number is 137
Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million one hundred twenty thousand six hundred forty-two
Scientific notation
2.0120642 × 10^7
Engineering notation
2.0120642 × 10^6
Prime Factorization
2 × 137 × 73433
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20120642
Product of the distinct prime numbers
The prime factorization of 20120642 is 2 × 137 × 73433.
Since it has a total of 3 prime factors.
5 , 3 , 68 , 62 , 877 , 210 , 9145 , 5854 , 92972 , 73890 , 564749 , 549796 , 143745 , 1275832 , 87175575 , 7884988 , 80670007 , 200688769 , 8580485719 , 2121687452
n×2
40241284
n×3
60361926
n×4
80482568
n×5
100603210
n÷2
10060321
n÷3
6706880.6666667
n÷3
5030160.5
n÷5
4024128.4
n2
404840234492164
n3
8.1456454254129E+21
n4
1.6389561546367E+29
n5
3.2976850041142E+36
2 √n
4485.6038612432
3 √n
271.98645585673
4 √n
66.974650885564
5 √n
28.888724470204
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
-20120641
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 20120642 can be divided by 8 positive divisors.
The sum of these divisors (counting 20120642) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000010001000010
3
Ternary
1101212020022222
4
Quaternary
1030300101002
5
Quinary
20122330032
6
Senary
1555131042
8
Octal
114602102
10
Decimal
20120642
12
Duodecimal
68a3a82
16
Hexadecimal
1330442
20
Vigesimal
65f1c2
36
Base36
bz96q
md5
ad7d4ec6838f20a5a31b1b010348c37c
sha1
e22ade5538695d25423285597a7036a5c4a4261a
sha256
d66bff8ae7b306c68b4f9ec93765d9daaa95a5a12322c09fbb3f5314e0290131
sha512
e0e618564be953dc515a8464c0c265ff8d87e1dec8c4927ca10d87ddedda54c63b07989138eb85eb6c339fdeac13adba4e9752f5bc4b0473379cbc4cf3b09070
ripemd-160
a338d8124e3f83135805005549fc26a9e04ec336
Diameter
40241284
Circumference
126421722.18542
Area
1.2718431065582E+15
Volume
3.4120399769633E+22
Surface area
5.0873724262326E+15
Circumference
126421722.18542
Perimeter
80482568
Area
404840234492164
Diagonal
28454884.800054
Surface area
2429041406952984
Volume
8.1456454254129E+21
Space diagonal
34849974.224904
Perimeter
60361926
Area
1.7530096377213E+14
Altitude
17424987.112452
Surface area
1.7530096377213E+14
Volume
9.5997351957511E+20
Height
9484961.6000179