20297985 is an odd 8-digits composite number following 20297984
and preceding 20297986 . In scientific notation, it is written as 2.0297985 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors.
There are 10093248 positive integers (up to 20297985) that are relatively prime to 20297985.
20297985 has 32 divisors, whose sum is 34728960
The reverse of 20297985 is 58979202
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million two hundred ninety-seven thousand nine hundred eighty-five
Scientific notation
2.0297985 × 10^7
Engineering notation
2.0297985 × 10^6
Prime Factorization
3 × 5 × 67 × 19 × 1063
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20297985
Product of the distinct prime numbers
The prime factorization of 20297985 is 3 × 5 × 67 × 19 × 1063.
Since it has a total of 5 prime factors.
10 , 2 , 4 , 82 , 853 , 144 , 9750 , 9132 , 47990 , 41287 , 820994 , 364992 , 1946410 , 711391 , 27123671 , 27503837 , 921773853 , 546466906 , 697839052 , 8376316291
n×2
40595970
n×3
60893955
n×4
81191940
n×5
101489925
n÷2
10148992.5
n÷3
6765995
n÷3
5074496.25
n÷5
4059597
n2
412008195060225
n3
8.3629361632095E+21
n4
1.6975075279678E+29
n5
3.4455982340078E+36
2 √n
4505.3285118846
3 √n
272.78321423163
4 √n
67.121743957413
5 √n
28.939470819487
1 , 3 , 5 , 15 , 19 , 57 , 67 , 95 , 201 , 285 , 335 , 1005 , 1063 , 1273 , 3189 , 3819 , 5315 , 6365 , 15945 , 19095 , 20197 , 60591 , 71221 , 100985 , 213663 , 302955 , 356105 , 1068315 , 1353199 , 4059597 , 6765995 , 20297985
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20297984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20297985 can be divided by 32 positive divisors.
The sum of these divisors (counting 20297985) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001101011011100100000001
3
Ternary
1102012020121020
4
Quaternary
1031123210001
5
Quinary
20144013420
6
Senary
2003020053
8
Octal
115334401
10
Decimal
20297985
12
Duodecimal
696a629
16
Hexadecimal
135b901
20
Vigesimal
66h4j5
36
Base36
c320x
md5
090b6cfbdc5696d004a8410da7b5b1e3
sha1
eb2ece05273dea72376db1476c1c39a651d0c733
sha256
d2338bd624737e6699ef1050b36d3f0881bb1e331807af3f428f058046415cc3
sha512
59e05da27ec125fb323f1c6f2459fd499e1b38cb1ebbde79bdef2e87ad4ce5b59ee4bb8294bc46a3d89faff2b2a175bacf87c8dadda10a866f5091c6adf29008
ripemd-160
a59d2130f7651246b388cb5c35572fc08e9687a3
Diameter
40595970
Circumference
127536001.11735
Area
1.29436191882E+15
Volume
3.5030585083706E+22
Surface area
5.17744767528E+15
Circumference
127536001.11735
Perimeter
81191940
Area
412008195060225
Diagonal
28705685.675846
Surface area
2472049170361350
Volume
8.3629361632095E+21
Space diagonal
35157141.311271
Perimeter
60893955
Area
1.7840478174476E+14
Altitude
17578570.655635
Surface area
1.7840478174476E+14
Volume
9.8558147860594E+20
Height
9568561.8919486