20100645 is an odd 8-digits composite number following 20100644
and preceding 20100646 . In scientific notation, it is written as 2.0100645 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 10684800 positive integers (up to 20100645) that are relatively prime to 20100645.
20100645 has 16 divisors, whose sum is 26889840
The reverse of 20100645 is 54600102
Previous prime number is 421
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million one hundred thousand six hundred forty-five
Scientific notation
2.0100645 × 10^7
Engineering notation
2.0100645 × 10^6
Prime Factorization
5 × 9 × 421 × 1061
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20100645
Product of the distinct prime numbers
The prime factorization of 20100645 is 5 × 9 × 421 × 1061.
Since it has a total of 4 prime factors.
2 , 5 , 17 , 19 , 148 , 8 , 1780 , 6128 , 54331 , 6157 , 871159 , 10562 , 5444984 , 1492517 , 40644606 , 23459941 , 625452282 , 17139858 , 9998811521 , 5990024129
n×2
40201290
n×3
60301935
n×4
80402580
n×5
100503225
n÷2
10050322.5
n÷3
6700215
n÷3
5025161.25
n÷5
4020129
n2
404035929416025
n3
8.1213827844366E+21
n4
1.6324503225907E+29
n5
3.2813304414531E+36
2 √n
4483.3742872975
3 √n
271.89632095971
4 √n
66.958003907654
5 √n
28.882979945596
1 , 5 , 9 , 45 , 421 , 1061 , 2105 , 3789 , 5305 , 9549 , 18945 , 47745 , 446681 , 2233405 , 4020129 , 20100645
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
-20100644
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 20100645 can be divided by 16 positive divisors.
The sum of these divisors (counting 20100645) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100101011011000100101
3
Ternary
1101211012220100
4
Quaternary
1030223120211
5
Quinary
20121210040
6
Senary
1554454313
8
Octal
114533045
10
Decimal
20100645
12
Duodecimal
6894399
16
Hexadecimal
132b625
20
Vigesimal
65cbc5
36
Base36
bytr9
md5
3a04e7485e47aa425852a39bdcfc16cf
sha1
597aaa49168c1566c3d082920156f41bc3bf1726
sha256
994581d27f016672c22f938e9528b404bbbc5c1587b8cc07fa384a1c8184dd80
sha512
f65f3f197d4bd7f1e262ccec8246f772fc66276fe39a575d7ddde4a2b852ff0190ec9d4b1c91aff225b271c7e5a951e269a68f4f735624f64cdf2a24ca0321ed
ripemd-160
a198fac3cd25c7fa0770868db169d12923d24a5a
Diameter
40201290
Circumference
126296077.32883
Area
1.2693163076397E+15
Volume
3.4018768656769E+22
Surface area
5.0772652305588E+15
Circumference
126296077.32883
Perimeter
80402580
Area
404035929416025
Diagonal
28426604.771447
Surface area
2424215576496150
Volume
8.1213827844366E+21
Space diagonal
34815338.404905
Perimeter
60301935
Area
1.7495268945797E+14
Altitude
17407669.202453
Surface area
1.7495268945797E+14
Volume
9.5711413991446E+20
Height
9475534.9238156