20197731 is an odd 8-digits composite number following 20197730
and preceding 20197732 . In scientific notation, it is written as 2.0197731 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 13465152 positive integers (up to 20197731) that are relatively prime to 20197731.
20197731 has 4 divisors, whose sum is 26930312
The reverse of 20197731 is 13779102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred ninety-seven thousand seven hundred thirty-one
Scientific notation
2.0197731 × 10^7
Engineering notation
2.0197731 × 10^6
Prime Factorization
3 × 6732577
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20197731
Product of the distinct prime numbers
The prime factorization of 20197731 is 3 × 6732577.
Since it has a total of 2 prime factors.
4 , 6 , 13 , 7 , 93 , 82 , 8762 , 2241 , 26300 , 85756 , 583664 , 5624 , 1853606 , 5366607 , 88703403 , 15449430 , 669731098 , 281140333 , 7979984021 , 2070040643
n×2
40395462
n×3
60593193
n×4
80790924
n×5
100988655
n÷2
10098865.5
n÷3
6732577
n÷3
5049432.75
n÷5
4039546.2
n2
407948337548361
n3
8.239630783699E+21
n4
1.6642184610847E+29
n5
3.3613436802223E+36
2 √n
4494.188580823
3 √n
272.33337062067
4 √n
67.038709570091
5 √n
28.910827122239
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
-20197730
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 20197731 can be divided by 4 positive divisors.
The sum of these divisors (counting 20197731) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000011000101100011
3
Ternary
1102000011002010
4
Quaternary
1031003011203
5
Quinary
20132311411
6
Senary
2000524003
8
Octal
115030543
10
Decimal
20197731
12
Duodecimal
6920603
16
Hexadecimal
1343163
20
Vigesimal
664e6b
36
Base36
c0wo3
md5
76406ce811e4cce0b4f91d7c1228494e
sha1
b095d0c0e18d9b8a436577dbf412f3828ebd2e38
sha256
cef4aa11ecc31337e4304435119bd1504d5959163e0fa857b0dc48136e077dba
sha512
f09dffd70733cd61f138423ae055473f497ef56fc526c160b77be21893195ce285f4c9e211b9a4183ed5b7ee608de30a738c7b331dbfe35159cf9faef2da4d57
ripemd-160
79a4a5dce519ffe36950a917b6875c66935cc375
Diameter
40395462
Circumference
126906086.65757
Area
1.2816075002861E+15
Volume
3.4514084717815E+22
Surface area
5.1264300011444E+15
Circumference
126906086.65757
Perimeter
80790924
Area
407948337548361
Diagonal
28563905.109363
Surface area
2447690025290166
Volume
8.239630783699E+21
Space diagonal
34983496.289609
Perimeter
60593193
Area
1.7664681187425E+14
Altitude
17491748.144804
Surface area
1.7664681187425E+14
Volume
9.7104980027116E+20
Height
9521301.7031212