1819971421 is an odd 10-digits prime number following 1819971420
and preceding 1819971422 . In scientific notation, it is written as 1.819971421 × 10^9.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 1819971420 positive integers (up to 1819971421) that are relatively prime to 1819971421.
1819971421 has 2 divisors, whose sum is 1819971422
The reverse of 1819971421 is 1241799181
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 10
Sum of Digits 43
Digital Root 7
Name
one billion eight hundred nineteen million nine hundred seventy-one thousand four hundred twenty-one
Scientific notation
1.819971421 × 10^9
Engineering notation
1.819971421 × 10^9
Prime Factorization
1819971421
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1819971421
Product of the distinct prime numbers
The prime factorization of 1819971421 is 1819971421.
Since it has a total of 1 prime factors.
7 , 2 , 52 , 71 , 590 , 617 , 4569 , 8417 , 53370 , 19885 , 668762 , 468478 , 5706873 , 8679757 , 91160815 , 28800640 , 60662917 , 742123904 , 7537194537 , 3624698103
n×2
3639942842
n×3
5459914263
n×4
7279885684
n×5
9099857105
n÷2
909985710.5
n÷3
606657140.33333
n÷3
454992855.25
n÷5
363994284.2
n2
3312295973256759241
n3
6.0282840092207E+27
n4
1.0971304614453E+37
n5
1.996746084939E+46
2 √n
42661.123063042
3 √n
1220.9227590661
4 √n
206.545692434
5 √n
71.123466176498
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1819971422
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
909985711
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
42661.123074762
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999989011
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1819971421 can be divided by 2 positive divisors.
The sum of these divisors (counting 1819971421) is 1819971422, the average is 909985711.
Base
System
Value
2
Binary
1101100011110101000111101011101
3
Ternary
11200211121010102221
4
Quaternary
1230132220331131
5
Quinary
12211403041141
6
Senary
500332145341
8
Octal
15436507535
10
Decimal
1819971421
12
Duodecimal
429608251
16
Hexadecimal
6c7a8f5d
20
Vigesimal
188eg8b1
36
Base36
u3kaxp
md5
0a98656115564431abe40bc334a65310
sha1
2f366838d82052b0829a897b61df26d5857d42d5
sha256
b1d28ff1859a712ae04eccaacd9adad46b0cee747bf3b6ae01a9ac76dd1ac8b4
sha512
a586431e4d3760d8f24cd5c2e61e076f616340ee17409e1ee52b3e89b7b29f720adf668d33b1010a2e19404247c8e92f329ad73a65fb4ed6c1012632a69a80d6
ripemd-160
77dfa7f77a4f57f0c6cf5d74484873fc903d71a0
Diameter
3639942842
Circumference
11435217691.914
Area
1.0405884696098E+19
Volume
2.5251217009494E+28
Surface area
4.1623538784394E+19
Circumference
11435217691.914
Perimeter
7279885684
Area
3312295973256759241
Diagonal
2573828266.7096
Surface area
1.9873775839541E+19
Volume
6.0282840092207E+27
Space diagonal
3152282969.4953
Perimeter
5459914263
Area
1.4342662288466E+18
Altitude
1576141484.7477
Surface area
1.4342662288466E+18
Volume
7.1044008363973E+26
Height
857942755.56988