20178920 is an even 8-digits composite number following 20178919
and preceding 20178921 . In scientific notation, it is written as 2.0178920 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 16 positive divisors.
There are 8071552 positive integers (up to 20178920) that are relatively prime to 20178920.
20178920 has 16 divisors, whose sum is 45402660
The reverse of 20178920 is 02987102
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred seventy-eight thousand nine hundred twenty
Scientific notation
2.0178920 × 10^7
Engineering notation
2.0178920 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 504473
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5044730
Product of the distinct prime numbers
The prime factorization of 20178920 is 2 × 2 × 2 × 5 × 504473.
Since it has a total of 5 prime factors.
4 , 4 , 53 , 96 , 580 , 438 , 3028 , 2583 , 66016 , 87005 , 399168 , 718966 , 4287758 , 6477898 , 98577874 , 6009875 , 761666960 , 611508763 , 1697126738 , 6709353334
n×2
40357840
n×3
60536760
n×4
80715680
n×5
100894600
n÷2
10089460
n÷3
6726306.6666667
n÷3
5044730
n÷5
4035784
n2
407188812366400
n3
8.2166304696366E+21
n4
1.6580272891636E+29
n5
3.3457200025849E+36
2 √n
4492.0952794882
3 √n
272.24879916992
4 √n
67.023095120176
5 √n
28.905439940052
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 504473 , 1008946 , 2017892 , 2522365 , 4035784 , 5044730 , 10089460 , 20178920
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
-20178919
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 20178920 can be divided by 16 positive divisors.
The sum of these divisors (counting 20178920) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111110011111101000
3
Ternary
1101222012021102
4
Quaternary
1030332133220
5
Quinary
20131211140
6
Senary
2000300532
8
Octal
114763750
10
Decimal
20178920
12
Duodecimal
6911748
16
Hexadecimal
133e7e8
20
Vigesimal
662760
36
Base36
c0i5k
md5
5f98f7ca7a168bf478bd61466c6231f7
sha1
6f7191cda18916299fa777c403459f2842e2bd5a
sha256
4ddce5501f9e19be3a9e69f0d67287f4457d4fb786730eaf5490e7f65b357172
sha512
03d7b7a4750b591f9e5733ae1adef9ca60fbb2aa40612295e35c64995680ce523131864b846b062743fdfb910d4d90fdb31291b055e31e12f54f251dfcca85d3
ripemd-160
3a7b630e79138d8546cfd1310428c61f6f188305
Diameter
40357840
Circumference
126787893.65875
Area
1.2792213815542E+15
Volume
3.4417741227563E+22
Surface area
5.1168855262169E+15
Circumference
126787893.65875
Perimeter
80715680
Area
407188812366400
Diagonal
28537302.338042
Surface area
2443132874198400
Volume
8.2166304696366E+21
Space diagonal
34950914.681868
Perimeter
60536760
Area
1.7631792782306E+14
Altitude
17475457.340934
Surface area
1.7631792782306E+14
Volume
9.6833918726401E+20
Height
9512434.1126806