20145123 is an odd 8-digits composite number following 20145122
and preceding 20145124 . In scientific notation, it is written as 2.0145123 × 10^7.
The sum of its digits is 18. It has a total of 2 prime factors and 4 positive divisors.
There are 13430076 positive integers (up to 20145123) that are relatively prime to 20145123.
20145123 has 4 divisors, whose sum is 22383480
The reverse of 20145123 is 32154102
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred forty-five thousand one hundred twenty-three
Scientific notation
2.0145123 × 10^7
Engineering notation
2.0145123 × 10^6
Prime Factorization
9 × 2238347
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20145123
Product of the distinct prime numbers
The prime factorization of 20145123 is 9 × 2238347.
Since it has a total of 2 prime factors.
4 , 5 , 18 , 63 , 146 , 450 , 3415 , 5127 , 13674 , 97650 , 359640 , 746078 , 7435159 , 1852439 , 85724744 , 46605847 , 657170763 , 471751498 , 8872374839 , 1956750104
n×2
40290246
n×3
60435369
n×4
80580492
n×5
100725615
n÷2
10072561.5
n÷3
6715041
n÷3
5036280.75
n÷5
4029024.6
n2
405825980685129
n3
8.1754142974975E+21
n4
1.6469472659905E+29
n5
3.3177955247892E+36
2 √n
4488.3318727563
3 √n
272.09672075716
4 √n
66.995013790254
5 √n
28.895750895301
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
-20145122
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 20145123 can be divided by 4 positive divisors.
The sum of these divisors (counting 20145123) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110110001111100011
3
Ternary
1101220110220200
4
Quaternary
1030312033203
5
Quinary
20124120443
6
Senary
1555440243
8
Octal
114661743
10
Decimal
20145123
12
Duodecimal
68b6083
16
Hexadecimal
13363e3
20
Vigesimal
65i2g3
36
Base36
bzs2r
md5
838237d6442bba5f09c23e8ca46a988d
sha1
a8ecc1515ec0a257772d9c6416aa142c826e5f94
sha256
c23a39c397e9bf4eeb8a57a27fa7b00370b39044cfe204ebff34556af374e6b7
sha512
d87f395ada5e80ceed3cabb94ec2f303a16aba13b89f9e064818108cec960b4ce02ff54d3be4c728e297aab2816bf31c5ece8c1e0a2a405e4504ef31edce104c
ripemd-160
e90975b94003a539578f11e410cb09cc175d57ce
Diameter
40290246
Circumference
126575540.84493
Area
1.2749399195563E+15
Volume
3.4245095329428E+22
Surface area
5.0997596782251E+15
Circumference
126575540.84493
Perimeter
80580492
Area
405825980685129
Diagonal
28489506.162274
Surface area
2434955884110774
Volume
8.1754142974975E+21
Space diagonal
34892376.560724
Perimeter
60435369
Area
1.7572780439453E+14
Altitude
17446188.280362
Surface area
1.7572780439453E+14
Volume
9.63481814795E+20
Height
9496502.0540914