20139845 is an odd 8-digits composite number following 20139844
and preceding 20139846 . In scientific notation, it is written as 2.0139845 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 14646720 positive integers (up to 20139845) that are relatively prime to 20139845.
20139845 has 4 divisors, whose sum is 20173740
The reverse of 20139845 is 54893102
Previous prime number is 605
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million one hundred thirty-nine thousand eight hundred forty-five
Scientific notation
2.0139845 × 10^7
Engineering notation
2.0139845 × 10^6
Prime Factorization
605 × 33289
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20139845
Product of the distinct prime numbers
The prime factorization of 20139845 is 605 × 33289.
Since it has a total of 2 prime factors.
4 , 4 , 21 , 27 , 261 , 118 , 9213 , 4880 , 93240 , 72578 , 912322 , 115226 , 8521258 , 4736880 , 21297925 , 67627479 , 795667046 , 136384000 , 270660736 , 9581383441
n×2
40279690
n×3
60419535
n×4
80559380
n×5
100699225
n÷2
10069922.5
n÷3
6713281.6666667
n÷3
5034961.25
n÷5
4027969
n2
405613356624025
n3
8.1689901323376E+21
n4
1.6452219507181E+29
n5
3.313451507806E+36
2 √n
4487.7438652401
3 √n
272.07295566802
4 √n
66.990625204129
5 √n
28.894236605625
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
-20139844
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 20139845 can be divided by 4 positive divisors.
The sum of these divisors (counting 20139845) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110100111101000101
3
Ternary
1101220012200012
4
Quaternary
1030310331011
5
Quinary
20123433340
6
Senary
1555400005
8
Octal
114647505
10
Decimal
20139845
12
Duodecimal
68b3005
16
Hexadecimal
1334f45
20
Vigesimal
65h9c5
36
Base36
bzo05
md5
8d897deeb6b99cdc0855cb193671dabd
sha1
23699f6b9122c11203173288682ec4b92a952974
sha256
454f6525096e431439ce9bc67a71ccd99103e5e6acd38b4938e93d91a5ef13b3
sha512
606a268dd492f8388b7ab494336b1df46a38e382b154fad755e608c822094a9152301b2748bf6da8668765fd24c4a17d9348e6a7d4871eb858f2900e7dc07007
ripemd-160
456764de724973c892692f92fedce9fffd480558
Diameter
40279690
Circumference
126542378.19287
Area
1.2742719413679E+15
Volume
3.4218185849332E+22
Surface area
5.0970877654717E+15
Circumference
126542378.19287
Perimeter
80559380
Area
405613356624025
Diagonal
28482041.943092
Surface area
2433680139744150
Volume
8.1689901323376E+21
Space diagonal
34883234.796562
Perimeter
60419535
Area
1.7563573547534E+14
Altitude
17441617.398281
Surface area
1.7563573547534E+14
Volume
9.6272471967032E+20
Height
9494013.9810307