20181960 is an even 8-digits composite number following 20181959
and preceding 20181961 . In scientific notation, it is written as 2.0181960 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 16 positive divisors.
There are 5380992 positive integers (up to 20181960) that are relatively prime to 20181960.
20181960 has 16 divisors, whose sum is 37940700
The reverse of 20181960 is 06918102
Previous prime number is 405
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred eighty-one thousand nine hundred sixty
Scientific notation
2.0181960 × 10^7
Engineering notation
2.0181960 × 10^6
Prime Factorization
2 × 2 × 2 × 405 × 6229
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5045490
Product of the distinct prime numbers
The prime factorization of 20181960 is 2 × 2 × 2 × 405 × 6229.
Since it has a total of 5 prime factors.
6 , 3 , 4 , 57 , 755 , 888 , 2482 , 8214 , 97922 , 44432 , 589730 , 415979 , 1251117 , 3194831 , 21901939 , 78598054 , 964032034 , 929801038 , 8252446360 , 402890876
n×2
40363920
n×3
60545880
n×4
80727840
n×5
100909800
n÷2
10090980
n÷3
6727320
n÷3
5045490
n÷5
4036392
n2
407311509441600
n3
8.22034459109E+21
n4
1.6590266572359E+29
n5
3.348240963527E+36
2 √n
4492.4336389089
3 √n
272.26247011615
4 √n
67.025619272849
5 √n
28.906310821572
1 , 2 , 4 , 8 , 405 , 810 , 1620 , 3240 , 6229 , 12458 , 24916 , 49832 , 2522745 , 5045490 , 10090980 , 20181960
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
-20181959
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 20181960 can be divided by 16 positive divisors.
The sum of these divisors (counting 20181960) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111111001111001000
3
Ternary
1101222100110000
4
Quaternary
1030333033020
5
Quinary
20131310320
6
Senary
2000323000
8
Octal
114771710
10
Decimal
20181960
12
Duodecimal
6913460
16
Hexadecimal
133f3c8
20
Vigesimal
662ei0
36
Base36
c0ki0
md5
7f280dcbe08527d7be95f518c2e6fd22
sha1
0b1554d1ea0bf20f4d00579fdb9a5d2549364292
sha256
e87e77791c96e8171da72f632b075b663db1d5fd81dd17c4ddba96f3ccbe7165
sha512
2f124d9f779c654b9b97a71a364d6892f333a9fc29dc64a42ab187b5b01f70e6ead429f2443e9ffe82e10a0b00123c2e93ec7d64c1de1dee6a0021cc273d4793
ripemd-160
6a450952895c9e4b4c4b16a9869d917e63d74731
Diameter
40363920
Circumference
126806994.54209
Area
1.2796068457843E+15
Volume
3.4433298903127E+22
Surface area
5.1184273831372E+15
Circumference
126806994.54209
Perimeter
80727840
Area
407311509441600
Diagonal
28541601.547271
Surface area
2443869056649600
Volume
8.22034459109E+21
Space diagonal
34956180.116323
Perimeter
60545880
Area
1.7637105721511E+14
Altitude
17478090.058161
Surface area
1.7637105721511E+14
Volume
9.6877690067498E+20
Height
9513867.1824238