20123645 is an odd 8-digits composite number following 20123644
and preceding 20123646 . In scientific notation, it is written as 2.0123645 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 16098912 positive integers (up to 20123645) that are relatively prime to 20123645.
20123645 has 4 divisors, whose sum is 24148380
The reverse of 20123645 is 54632102
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-three thousand six hundred forty-five
Scientific notation
2.0123645 × 10^7
Engineering notation
2.0123645 × 10^6
Prime Factorization
5 × 4024729
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20123645
Product of the distinct prime numbers
The prime factorization of 20123645 is 5 × 4024729.
Since it has a total of 2 prime factors.
9 , 7 , 36 , 72 , 823 , 487 , 4210 , 9034 , 96683 , 40816 , 935880 , 642691 , 1324563 , 9095406 , 29706227 , 63943135 , 743383116 , 784331600 , 363002695 , 2832328914
n×2
40247290
n×3
60370935
n×4
80494580
n×5
100618225
n÷2
10061822.5
n÷3
6707881.6666667
n÷3
5030911.25
n÷5
4024729
n2
404961088086025
n3
8.1492931754569E+21
n4
1.6399348286382E+29
n5
3.300146631465E+36
2 √n
4485.9385862938
3 √n
271.99998648356
4 √n
66.977149732531
5 √n
28.889586745482
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
-20123644
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 20123645 can be divided by 4 positive divisors.
The sum of these divisors (counting 20123645) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110000111111111101
3
Ternary
1101212101110012
4
Quaternary
1030300333331
5
Quinary
20122424040
6
Senary
1555153005
8
Octal
114607775
10
Decimal
20123645
12
Duodecimal
68a5765
16
Hexadecimal
1330ffd
20
Vigesimal
65f925
36
Base36
bzbi5
md5
53315d8f69ebcc403c7e8bda68dc70f4
sha1
b1c5b2eaf250850be84262c2ef312509b6624709
sha256
28fd1ca4c6871295a25d676aa896a2da3e1837a03bb58baca65a9b008a388b26
sha512
393c9a849708be58c748610a712c8aa325db20466768f40b6c23bcdd8c3a7be336a4b17285d64b91fbaac25c3fee1f6aa7a9d43fb4345b5ca16cdd575516ea2a
ripemd-160
3a660b12162d1820e050f72ec3a79abb74483c1a
Diameter
40247290
Circumference
126440590.5909
Area
1.2722227793208E+15
Volume
3.4135679429286E+22
Surface area
5.0888911172831E+15
Circumference
126440590.5909
Perimeter
80494580
Area
404961088086025
Diagonal
28459131.683382
Surface area
2429766528516150
Volume
8.1492931754569E+21
Space diagonal
34855175.573479
Perimeter
60370935
Area
1.7535329491334E+14
Altitude
17427587.78674
Surface area
1.7535329491334E+14
Volume
9.6040341104047E+20
Height
9486377.2277938