20190861 is an odd 8-digits composite number following 20190860
and preceding 20190862 . In scientific notation, it is written as 2.0190861 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13460568 positive integers (up to 20190861) that are relatively prime to 20190861.
20190861 has 4 divisors, whose sum is 22434300
The reverse of 20190861 is 16809102
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred ninety thousand eight hundred sixty-one
Scientific notation
2.0190861 × 10^7
Engineering notation
2.0190861 × 10^6
Prime Factorization
9 × 2243429
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20190861
Product of the distinct prime numbers
The prime factorization of 20190861 is 9 × 2243429.
Since it has a total of 2 prime factors.
3 , 4 , 97 , 81 , 43 , 389 , 130 , 2819 , 5222 , 58805 , 121630 , 915561 , 8615341 , 1383530 , 46260156 , 54900593 , 365871240 , 317419126 , 6846187821 , 5863590
n×2
40381722
n×3
60572583
n×4
80763444
n×5
100954305
n÷2
10095430.5
n÷3
6730287
n÷3
5047715.25
n÷5
4038172.2
n2
407670867921321
n3
8.2312258279488E+21
n4
1.6619553655172E+29
n5
3.3556309773363E+36
2 √n
4493.4241954216
3 √n
272.30249021434
4 √n
67.033008252812
5 √n
28.908860124949
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
-20190860
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 20190861 can be divided by 4 positive divisors.
The sum of these divisors (counting 20190861) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000001011010001101
3
Ternary
1101222210122200
4
Quaternary
1031001122031
5
Quinary
20132101421
6
Senary
2000432113
8
Octal
115013215
10
Decimal
20190861
12
Duodecimal
6918639
16
Hexadecimal
134168d
20
Vigesimal
663h31
36
Base36
c0rd9
md5
399fd0aa49333485197dd046562b10fa
sha1
dfdfccc7a1f34e49a97d90421216414d5d7693b3
sha256
b603ae72d41e29a9623e09bc6510933902782d1449a44c1652b209efbbede2aa
sha512
491887c09029c75f3fb0697605865c76d01e2d7beb777cad98e85028a0c2bebf60e5d4588bad2dbd334a8397a46a7bf62a88414a7d41d705ef013aadaa63b323
ripemd-160
9969940a3635c3c99f36c9bf225e5a7d03d363fc
Diameter
40381722
Circumference
126862921.17451
Area
1.2807358037442E+15
Volume
3.4478878121496E+22
Surface area
5.1229432149768E+15
Circumference
126862921.17451
Perimeter
80763444
Area
407670867921321
Diagonal
28554189.46219
Surface area
2446025207527926
Volume
8.2312258279488E+21
Space diagonal
34971597.100561
Perimeter
60572583
Area
1.7652666400136E+14
Altitude
17485798.55028
Surface area
1.7652666400136E+14
Volume
9.7005926673674E+20
Height
9518063.1540633