20123785 is an odd 8-digits composite number following 20123784
and preceding 20123786 . In scientific notation, it is written as 2.0123785 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 13970880 positive integers (up to 20123785) that are relatively prime to 20123785.
20123785 has 16 divisors, whose sum is 21446656
The reverse of 20123785 is 58732102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred twenty-three thousand seven hundred eighty-five
Scientific notation
2.0123785 × 10^7
Engineering notation
2.0123785 × 10^6
Prime Factorization
55 × 43 × 67 × 127
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20123785
Product of the distinct prime numbers
The prime factorization of 20123785 is 55 × 43 × 67 × 127.
Since it has a total of 4 prime factors.
3 , 1 , 52 , 96 , 808 , 139 , 5520 , 1763 , 12386 , 62840 , 888428 , 487235 , 8801135 , 5139227 , 47901083 , 44033436 , 891063683 , 545632269 , 1758203315 , 3507705120
n×2
40247570
n×3
60371355
n×4
80495140
n×5
100618925
n÷2
10061892.5
n÷3
6707928.3333333
n÷3
5030946.25
n÷5
4024757
n2
404966722726225
n3
8.1494632602972E+21
n4
1.6399804651562E+29
n5
3.3002614285003E+36
2 √n
4485.954190582
3 √n
272.00061724918
4 √n
66.97726622207
5 √n
28.889626942284
1 , 43 , 55 , 67 , 127 , 2365 , 2881 , 3685 , 5461 , 6985 , 8509 , 158455 , 300355 , 365887 , 467995 , 20123785
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20123784
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20123785 can be divided by 16 positive divisors.
The sum of these divisors (counting 20123785) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110001000010001001
3
Ternary
1101212101122101
4
Quaternary
1030301002021
5
Quinary
20122430120
6
Senary
1555153401
8
Octal
114610211
10
Decimal
20123785
12
Duodecimal
68a5861
16
Hexadecimal
1331089
20
Vigesimal
65f995
36
Base36
bzbm1
md5
65eab523f42f580e317ff55e57fa3b9b
sha1
4cea4b3d627f13013935ed17fbd8103d473c37c7
sha256
f94c6ccb23217705aa1bb26337fe35a3147c5e7968b0b28d09bc32fbd53bb75b
sha512
1f7961f6239c56a57a2e69a3aee9f02c6f67b6cc7aa839937f5960c8dfc6d9e526fac23a8807708f0103f1ef9f3b7a78a64f23c14a73679700fb66fafb1cc946
ripemd-160
9e59a9eca65dc9ebbcceae7657846e7c38bb4e58
Diameter
40247570
Circumference
126441470.23684
Area
1.272240481065E+15
Volume
3.4136391878999E+22
Surface area
5.0889619242602E+15
Circumference
126441470.23684
Perimeter
80495140
Area
404966722726225
Diagonal
28459329.67328
Surface area
2429800336357350
Volume
8.1494632602972E+21
Space diagonal
34855418.060592
Perimeter
60371355
Area
1.7535573478412E+14
Altitude
17427709.030296
Surface area
1.7535573478412E+14
Volume
9.6042345573113E+20
Height
9486443.2244268