20197978 is an even 8-digits composite number following 20197977
and preceding 20197979 . In scientific notation, it is written as 2.0197978 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 9750720 positive integers (up to 20197978) that are relatively prime to 20197978.
20197978 has 8 divisors, whose sum is 31341780
The reverse of 20197978 is 87979102
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million one hundred ninety-seven thousand nine hundred seventy-eight
Scientific notation
2.0197978 × 10^7
Engineering notation
2.0197978 × 10^6
Prime Factorization
2 × 29 × 348241
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20197978
Product of the distinct prime numbers
The prime factorization of 20197978 is 2 × 29 × 348241.
Since it has a total of 3 prime factors.
2 , 3 , 43 , 51 , 865 , 54 , 7601 , 7914 , 88095 , 82371 , 954313 , 963286 , 1309709 , 1008696 , 67282731 , 54542820 , 556346219 , 545872574 , 8077172960 , 8755245235
n×2
40395956
n×3
60593934
n×4
80791912
n×5
100989890
n÷2
10098989
n÷3
6732659.3333333
n÷3
5049494.5
n÷5
4039595.6
n2
407958315288484
n3
8.2399330771139E+21
n4
1.6642998701302E+29
n5
3.3615492162292E+36
2 √n
4494.2160606718
3 √n
272.33448074649
4 √n
67.038914524862
5 √n
28.910897832552
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20197977
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20197978 can be divided by 8 positive divisors.
The sum of these divisors (counting 20197978) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000011001001011010
3
Ternary
1102000011102021
4
Quaternary
1031003021122
5
Quinary
20132313403
6
Senary
2000525054
8
Octal
115031132
10
Decimal
20197978
12
Duodecimal
692078a
16
Hexadecimal
134325a
20
Vigesimal
664eii
36
Base36
c0wuy
md5
601293362df530647472781bc531aa0d
sha1
95865de51e86e65800601d701b65052083a53b36
sha256
f102ff61a104cb7a0728a645f7ec4559b98e1147f24e6052565cc447f503acc0
sha512
5272191d16a6e9301f7a02a56ee2484bc60421181eb3b16e9185ad1858bccc824547a3e03a202740f54278957b199bc333fa819cb0ff8de1ebe8119feed5d99a
ripemd-160
cd2b6ff07fb094d11e0329081947ba36520c4768
Diameter
40395956
Circumference
126907638.60434
Area
1.2816388462812E+15
Volume
3.451535096151E+22
Surface area
5.1265553851247E+15
Circumference
126907638.60434
Perimeter
80791912
Area
407958315288484
Diagonal
28564254.420113
Surface area
2447749891730904
Volume
8.2399330771139E+21
Space diagonal
34983924.106158
Perimeter
60593934
Area
1.7665113236246E+14
Altitude
17491962.053079
Surface area
1.7665113236246E+14
Volume
9.7108542589176E+20
Height
9521418.1400378