20191720 is an even 8-digits composite number following 20191719
and preceding 20191721 . In scientific notation, it is written as 2.0191720 × 10^7.
The sum of its digits is 22. It has a total of 6 prime factors and 32 positive divisors.
There are 8020800 positive integers (up to 20191720) that are relatively prime to 20191720.
20191720 has 32 divisors, whose sum is 45745920
The reverse of 20191720 is 02719102
Previous prime number is 151
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million one hundred ninety-one thousand seven hundred twenty
Scientific notation
2.0191720 × 10^7
Engineering notation
2.0191720 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 151 × 3343
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5047930
Product of the distinct prime numbers
The prime factorization of 20191720 is 2 × 2 × 2 × 5 × 151 × 3343.
Since it has a total of 6 prime factors.
6 , 1 , 21 , 39 , 944 , 240 , 2655 , 8927 , 16567 , 99677 , 605859 , 915939 , 3326875 , 8589620 , 65077426 , 56910116 , 301701359 , 473318271 , 4899363387 , 7468935810
n×2
40383440
n×3
60575160
n×4
80766880
n×5
100958600
n÷2
10095860
n÷3
6730573.3333333
n÷3
5047930
n÷5
4038344
n2
407705556558400
n3
8.2322764404714E+21
n4
1.6622382084859E+29
n5
3.356344847905E+36
2 √n
4493.5197785255
3 √n
272.306351772
4 √n
67.033721204521
5 √n
28.909106100475
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 151 , 302 , 604 , 755 , 1208 , 1510 , 3020 , 3343 , 6040 , 6686 , 13372 , 16715 , 26744 , 33430 , 66860 , 133720 , 504793 , 1009586 , 2019172 , 2523965 , 4038344 , 5047930 , 10095860 , 20191720
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20191719
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20191720 can be divided by 32 positive divisors.
The sum of these divisors (counting 20191720) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001101000001100111101000
3
Ternary
1101222211211111
4
Quaternary
1031001213220
5
Quinary
20132113340
6
Senary
2000440104
8
Octal
115014750
10
Decimal
20191720
12
Duodecimal
6919034
16
Hexadecimal
13419e8
20
Vigesimal
663j60
36
Base36
c0s14
md5
f1bd9e10134c594acbaa68da0c4f6f06
sha1
b06a1a187b2b908debc47855179a2551c96a52b0
sha256
1aacb904140a6616295733d2e7d7986e7f93024bc224ff71c6c19d8db10c38fb
sha512
e76cd650721c75f9ce0c9594b1b69327de8537e58d63c0458fb3a372294e0f05d6eee36a1a2c38e3e3cd5a2b1f55b934f37721cc381253bb569ea44eeeb0d517
ripemd-160
9ec7547274c64fab09ff11d9763fec4b2a9c34d4
Diameter
40383440
Circumference
126868318.43068
Area
1.2808447813116E+15
Volume
3.448327891694E+22
Surface area
5.1233791252464E+15
Circumference
126868318.43068
Perimeter
80766880
Area
407705556558400
Diagonal
28555404.27164
Surface area
2446233339350400
Volume
8.2322764404714E+21
Space diagonal
34973084.932205
Perimeter
60575160
Area
1.7654168462182E+14
Altitude
17486542.466102
Surface area
1.7654168462182E+14
Volume
9.7018308260993E+20
Height
9518468.0905467