20188281 is an odd 8-digits composite number following 20188280
and preceding 20188282 . In scientific notation, it is written as 2.0188281 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 13458852 positive integers (up to 20188281) that are relatively prime to 20188281.
20188281 has 4 divisors, whose sum is 26917712
The reverse of 20188281 is 18288102
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred eighty-eight thousand two hundred eighty-one
Scientific notation
2.0188281 × 10^7
Engineering notation
2.0188281 × 10^6
Prime Factorization
3 × 6729427
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20188281
Product of the distinct prime numbers
The prime factorization of 20188281 is 3 × 6729427.
Since it has a total of 2 prime factors.
5 , 4 , 30 , 14 , 853 , 381 , 2549 , 8634 , 35020 , 79538 , 60470 , 936136 , 6037734 , 28105 , 30038868 , 11586929 , 973778978 , 994420473 , 7161875487 , 1545213408
n×2
40376562
n×3
60564843
n×4
80753124
n×5
100941405
n÷2
10094140.5
n÷3
6729427
n÷3
5047070.25
n÷5
4037656.2
n2
407566689734961
n3
8.2280708586092E+21
n4
1.6611060658151E+29
n5
3.3534876027481E+36
2 √n
4493.1371000672
3 √n
272.29089139659
4 √n
67.030866770967
5 √n
28.908121288981
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20188280
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20188281 can be divided by 4 positive divisors.
The sum of these divisors (counting 20188281) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000000110001111001
3
Ternary
1101222200010010
4
Quaternary
1031000301321
5
Quinary
20132011111
6
Senary
2000412133
8
Octal
115006171
10
Decimal
20188281
12
Duodecimal
6917049
16
Hexadecimal
1340c79
20
Vigesimal
663ae1
36
Base36
c0pdl
md5
09bbda753057809ec9f56378878b87d5
sha1
9fc10a0d8ca3d1451c276f1eb675a0693abbae73
sha256
53e08b8407f048b80ec6c53224141acc657abf0f06e66046b225e10114f0329c
sha512
1ad0312dee0cdec1aec577b3b57c72e17b6858a53ae0ddd8fbfb0322c62e46b6d77f580485be3459127b6ef339ade3c4cd488fcc813967100ee7a2474c8956a8
ripemd-160
b9cb13feeccfa3447599ee8657cb83eaeb59d05b
Diameter
40376562
Circumference
126846710.55641
Area
1.2804085183193E+15
Volume
3.4465662616831E+22
Surface area
5.1216340732771E+15
Circumference
126846710.55641
Perimeter
80753124
Area
407566689734961
Diagonal
28550540.791199
Surface area
2445400138409766
Volume
8.2280708586092E+21
Space diagonal
34967128.409477
Perimeter
60564843
Area
1.764815535234E+14
Altitude
17483564.204739
Surface area
1.764815535234E+14
Volume
9.6968745003433E+20
Height
9516846.9303997