20197988 is an even 8-digits composite number following 20197987
and preceding 20197989 . In scientific notation, it is written as 2.0197988 × 10^7.
The sum of its digits is 44. It has a total of 5 prime factors and 24 positive divisors.
There are 9257760 positive integers (up to 20197988) that are relatively prime to 20197988.
20197988 has 24 divisors, whose sum is 38411520
The reverse of 20197988 is 88979102
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty million one hundred ninety-seven thousand nine hundred eighty-eight
Scientific notation
2.0197988 × 10^7
Engineering notation
2.0197988 × 10^6
Prime Factorization
2 × 2 × 19 × 31 × 8573
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10098994
Product of the distinct prime numbers
The prime factorization of 20197988 is 2 × 2 × 19 × 31 × 8573.
Since it has a total of 5 prime factors.
2 , 5 , 79 , 24 , 725 , 15 , 5451 , 1992 , 99078 , 10854 , 127247 , 375820 , 4703693 , 6519216 , 20137750 , 1259216 , 690988186 , 501628207 , 467771099 , 9578271758
n×2
40395976
n×3
60593964
n×4
80791952
n×5
100989940
n÷2
10098994
n÷3
6732662.6666667
n÷3
5049497
n÷5
4039597.6
n2
407958719248144
n3
8.2399453158694E+21
n4
1.6643031661059E+29
n5
3.3615575377368E+36
2 √n
4494.2171732127
3 √n
272.33452569067
4 √n
67.038922822586
5 √n
28.910900695303
1 , 2 , 4 , 19 , 31 , 38 , 62 , 76 , 124 , 589 , 1178 , 2356 , 8573 , 17146 , 34292 , 162887 , 265763 , 325774 , 531526 , 651548 , 1063052 , 5049497 , 10098994 , 20197988
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20197987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20197988 can be divided by 24 positive divisors.
The sum of these divisors (counting 20197988) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001101000011001001100100
3
Ternary
1102000011102122
4
Quaternary
1031003021210
5
Quinary
20132313423
6
Senary
2000525112
8
Octal
115031144
10
Decimal
20197988
12
Duodecimal
6920798
16
Hexadecimal
1343264
20
Vigesimal
664ej8
36
Base36
c0wv8
md5
6de420d136d44e83e2a270f2a6474761
sha1
9ce3e388540e0cb1c3946ab571861b851f072462
sha256
a19453224eed00f0e1abbbe1fe34818c19730189695ff840cc03df6be4d63178
sha512
00909ae81ade6708874f883ca02669044f5e524694775442b6049e404450d2c2727b69a57febfc8a430e55e30ed631df580b5c37b6f03ed4974003401cd3d799
ripemd-160
ee2b33c310185327d72d48e66e93f28d2094ba0b
Diameter
40395976
Circumference
126907701.43619
Area
1.2816401153579E+15
Volume
3.4515402227089E+22
Surface area
5.1265604614315E+15
Circumference
126907701.43619
Perimeter
80791952
Area
407958719248144
Diagonal
28564268.562249
Surface area
2447752315488864
Volume
8.2399453158694E+21
Space diagonal
34983941.426666
Perimeter
60593964
Area
1.7665130728213E+14
Altitude
17491970.713333
Surface area
1.7665130728213E+14
Volume
9.7108686824293E+20
Height
9521422.854083