20123915 is an odd 8-digits composite number following 20123914
and preceding 20123916 . In scientific notation, it is written as 2.0123915 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 13799232 positive integers (up to 20123915) that are relatively prime to 20123915.
20123915 has 4 divisors, whose sum is 20698920
The reverse of 20123915 is 51932102
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-three thousand nine hundred fifteen
Scientific notation
2.0123915 × 10^7
Engineering notation
2.0123915 × 10^6
Prime Factorization
35 × 574969
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20123915
Product of the distinct prime numbers
The prime factorization of 20123915 is 35 × 574969.
Since it has a total of 2 prime factors.
5 , 10 , 71 , 3 , 885 , 929 , 6161 , 2229 , 98394 , 35675 , 704939 , 906286 , 2303384 , 6853522 , 92196806 , 78064567 , 379166424 , 327757577 , 4658030281 , 6980877106
n×2
40247830
n×3
60371745
n×4
80495660
n×5
100619575
n÷2
10061957.5
n÷3
6707971.6666667
n÷3
5030978.75
n÷5
4024783
n2
404971954927225
n3
8.1496211983393E+21
n4
1.6400228427758E+29
n5
3.3003680286078E+36
2 √n
4485.9686802295
3 √n
272.00120295748
4 √n
66.977374390383
5 √n
28.889664267686
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
-20123914
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 20123915 can be divided by 4 positive divisors.
The sum of these divisors (counting 20123915) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110001000100001011
3
Ternary
1101212101211012
4
Quaternary
1030301010023
5
Quinary
20122431130
6
Senary
1555154135
8
Octal
114610413
10
Decimal
20123915
12
Duodecimal
68a594b
16
Hexadecimal
133110b
20
Vigesimal
65f9ff
36
Base36
bzbpn
md5
4d332e43d27b0547cf8b21e18514fcab
sha1
916aba5ed06d1ca7fdc9815da03fe399f424cfe0
sha256
da4d7c35765bceb63ba4a4323ac078f8909c04dc25f3e0b12b09ba69705a06f8
sha512
da4a53ea2e5125c59992e1dbc1844f55fdc90f4d5356d220f37f8762e10e2beeb808e1c72b50d3d390b96796113f90f67627b071b9ce571dc24ad0d5fc013918
ripemd-160
0c65c2aec00d91c9ddb08836a0484dc7be3b7208
Diameter
40247830
Circumference
126442287.05093
Area
1.2722569185093E+15
Volume
3.4137053448323E+22
Surface area
5.0890276740371E+15
Circumference
126442287.05093
Perimeter
80495660
Area
404971954927225
Diagonal
28459513.521043
Surface area
2429831729563350
Volume
8.1496211983393E+21
Space diagonal
34855643.227197
Perimeter
60371745
Area
1.7535800039361E+14
Altitude
17427821.613599
Surface area
1.7535800039361E+14
Volume
9.6044206890789E+20
Height
9486504.5070145