19980181 is an odd 8-digits composite number following 19980180
and preceding 19980182 . In scientific notation, it is written as 1.9980181 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 18182640 positive integers (up to 19980181) that are relatively prime to 19980181.
19980181 has 8 divisors, whose sum is 21821184
The reverse of 19980181 is 18108991
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
nineteen million nine hundred eighty thousand one hundred eighty-one
Scientific notation
1.9980181 × 10^7
Engineering notation
1.9980181 × 10^6
Prime Factorization
13 × 71 × 21647
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19980181
Product of the distinct prime numbers
The prime factorization of 19980181 is 13 × 71 × 21647.
Since it has a total of 3 prime factors.
5 , 1 , 91 , 86 , 409 , 823 , 6898 , 2393 , 91627 , 21461 , 936125 , 620153 , 3377216 , 4566267 , 26433314 , 58116367 , 605924867 , 607903416 , 3072463357 , 6571770857
n×2
39960362
n×3
59940543
n×4
79920724
n×5
99900905
n÷2
9990090.5
n÷3
6660060.3333333
n÷3
4995045.25
n÷5
3996036.2
n2
399207632792761
n3
7.9762407597809E+21
n4
1.5936673408E+29
n5
3.1841761922973E+36
2 √n
4469.9195742205
3 √n
271.3520702885
4 √n
66.857457132474
5 √n
28.84827727618
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
-19980180
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 19980181 can be divided by 8 positive divisors.
The sum of these divisors (counting 19980181) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100001101111110010101
3
Ternary
1101121002122201
4
Quaternary
1030031332111
5
Quinary
20103331211
6
Senary
1552124501
8
Octal
114157625
10
Decimal
19980181
12
Duodecimal
6836731
16
Hexadecimal
130df95
20
Vigesimal
64ha91
36
Base36
bw8t1
md5
892603bd49ca772bdd5eef7dfa7de5c1
sha1
81d0055086f9ffd937c5ffdfc6b4121d06ab8dc9
sha256
2ce8f0943205f7e0148438b412668f20ae6c13b2de95b630b07aa1f33bf03842
sha512
3932ebd87baeeba906bc80a4ce79ac76a8d80bb5ee8b034585557a774be1d31d15f1921d9b8b9faa1268814e9a4ab473ccfa8a16d65cc0cd121877c0a86cda7f
ripemd-160
f32f8e848d8a4451d94b56170c05088b7023c6d2
Diameter
39960362
Circumference
125539179.69399
Area
1.2541477664387E+15
Volume
3.3410799165588E+22
Surface area
5.0165910657548E+15
Circumference
125539179.69399
Perimeter
79920724
Area
399207632792761
Diagonal
28256242.948869
Surface area
2395245796756566
Volume
7.9762407597809E+21
Space diagonal
34606688.636422
Perimeter
59940543
Area
1.7286197569159E+14
Altitude
17303344.318211
Surface area
1.7286197569159E+14
Volume
9.400089882696E+20
Height
9418747.6496231