20509870 is an even 8-digits composite number following 20509869
and preceding 20509871 . In scientific notation, it is written as 2.0509870 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 8203944 positive integers (up to 20509870) that are relatively prime to 20509870.
20509870 has 8 divisors, whose sum is 36917784
The reverse of 20509870 is 07890502
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million five hundred nine thousand eight hundred seventy
Scientific notation
2.0509870 × 10^7
Engineering notation
2.0509870 × 10^6
Prime Factorization
2 × 5 × 2050987
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20509870
Product of the distinct prime numbers
The prime factorization of 20509870 is 2 × 5 × 2050987.
Since it has a total of 3 prime factors.
9 , 7 , 97 , 83 , 360 , 793 , 4591 , 9588 , 47234 , 42776 , 288115 , 140404 , 3147111 , 4011053 , 34602724 , 84897637 , 279592475 , 285505807 , 5951700052 , 1242147803
n×2
41019740
n×3
61529610
n×4
82039480
n×5
102549350
n÷2
10254935
n÷3
6836623.3333333
n÷3
5127467.5
n÷5
4101974
n2
420654767416900
n3
8.6275745946009E+21
n4
1.7695043335057E+29
n5
3.6292303844638E+36
2 √n
4528.7823970688
3 √n
273.72909982704
4 √n
67.296228698708
5 √n
28.999638324258
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
-20509869
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 20509870 can be divided by 8 positive divisors.
The sum of these divisors (counting 20509870) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110001111010010101110
3
Ternary
1102121000020211
4
Quaternary
1032033102232
5
Quinary
20222303440
6
Senary
2011333034
8
Octal
116172256
10
Decimal
20509870
12
Duodecimal
6a5117a
16
Hexadecimal
138f4ae
20
Vigesimal
683eda
36
Base36
c7lim
md5
1e221d9e7eae4d7e36c91718864ff124
sha1
ab7f230cfafa488476c42e0633f16f28c98d9c25
sha256
dc21a9158dc6f378abef1510bbb1e1a344f9122c725d8da0013377650268a74e
sha512
22dd175bc41288d7689cc4d7aeb370ee75875fe8afcc68c608b4017efdfa50637bd482c898aa17aed9ecfb81e3355946dd7513c3efb10f96598d5fbc181e02cd
ripemd-160
ea99c1222ac5ca1587f03cbad3fd2ab6333bb966
Diameter
41019740
Circumference
128867313.83616
Area
1.3215259270145E+15
Volume
3.6139099952928E+22
Surface area
5.2861037080578E+15
Circumference
128867313.83616
Perimeter
82039480
Area
420654767416900
Diagonal
29005336.316509
Surface area
2523928604501400
Volume
8.6275745946009E+21
Space diagonal
35524136.896633
Perimeter
61529610
Area
1.8214885740303E+14
Altitude
17762068.448316
Surface area
1.8214885740303E+14
Volume
1.0167694168392E+21
Height
9668445.4388364