20187742 is an even 8-digits composite number following 20187741
and preceding 20187743 . In scientific notation, it is written as 2.0187742 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 10086744 positive integers (up to 20187742) that are relatively prime to 20187742.
20187742 has 8 divisors, whose sum is 30303000
The reverse of 20187742 is 24778102
Previous prime number is 1949
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred eighty-seven thousand seven hundred forty-two
Scientific notation
2.0187742 × 10^7
Engineering notation
2.0187742 × 10^6
Prime Factorization
2 × 1949 × 5179
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20187742
Product of the distinct prime numbers
The prime factorization of 20187742 is 2 × 1949 × 5179.
Since it has a total of 3 prime factors.
1 , 3 , 30 , 90 , 99 , 594 , 7645 , 7092 , 86951 , 64980 , 473162 , 228291 , 265371 , 5490486 , 98516249 , 24572620 , 92302303 , 804610966 , 9607471611 , 3729413356
n×2
40375484
n×3
60563226
n×4
80750968
n×5
100938710
n÷2
10093871
n÷3
6729247.3333333
n÷3
5046935.5
n÷5
4037548.4
n2
407544927058564
n3
8.2274118408671E+21
n4
1.6609286757117E+29
n5
3.353039958567E+36
2 √n
4493.0771193025
3 √n
272.28846810794
4 √n
67.030419357949
5 √n
28.907966925727
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
-20187741
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 20187742 can be divided by 8 positive divisors.
The sum of these divisors (counting 20187742) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000000101001011110
3
Ternary
1101222122101011
4
Quaternary
1031000221132
5
Quinary
20132001432
6
Senary
2000405434
8
Octal
115005136
10
Decimal
20187742
12
Duodecimal
691687a
16
Hexadecimal
1340a5e
20
Vigesimal
663972
36
Base36
c0oym
md5
e0729dffb672c391d5120a55d8752b21
sha1
c97c0c89c9e09da4628c796e2b740f2dd37f3c83
sha256
5fa7a324a5d7abe29e9f988d9f720d12fd91fd4e89a71e8b1303a18ded7c3610
sha512
5fd5886c3da419f231154044960c71a39b0cd4d439e2f807cf6f49739653d711410bba342f751fb6ccf79c82ede94dcdd295262fab8c80fc30dfef638bdc387e
ripemd-160
a7bc505e04e857ab49ed701561f9e24252729537
Diameter
40375484
Circumference
126843323.91953
Area
1.280340148855E+15
Volume
3.4462902129768E+22
Surface area
5.1213605954199E+15
Circumference
126843323.91953
Perimeter
80750968
Area
407544927058564
Diagonal
28549778.530089
Surface area
2445269562351384
Volume
8.2274118408671E+21
Space diagonal
34966194.834092
Perimeter
60563226
Area
1.764721300081E+14
Altitude
17483097.417046
Surface area
1.764721300081E+14
Volume
9.696097840486E+20
Height
9516592.843363