1621842394 is an even 10-digits composite number following 1621842393
and preceding 1621842395 . In scientific notation, it is written as 1.621842394 × 10^9.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 767841984 positive integers (up to 1621842394) that are relatively prime to 1621842394.
1621842394 has 16 divisors, whose sum is 2562134400
The reverse of 1621842394 is 4932481261
Previous prime number is 20047
Is Prime? no
Number parity even
Number length 10
Sum of Digits 40
Digital Root 4
Name
one billion six hundred twenty-one million eight hundred forty-two thousand three hundred ninety-four
Scientific notation
1.621842394 × 10^9
Engineering notation
1.621842394 × 10^9
Prime Factorization
2 × 19 × 20047 × 2129
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1621842394
Product of the distinct prime numbers
The prime factorization of 1621842394 is 2 × 19 × 20047 × 2129.
Since it has a total of 4 prime factors.
1 , 5 , 4 , 97 , 543 , 289 , 7284 , 8775 , 54712 , 70781 , 279680 , 997101 , 4822343 , 7496254 , 37877610 , 67045051 , 213003316 , 691039960 , 1985787087 , 9474116966
n×2
3243684788
n×3
4865527182
n×4
6487369576
n×5
8109211970
n÷2
810921197
n÷3
540614131.33333
n÷3
405460598.5
n÷5
324368478.8
n2
2630372750975651236
n3
4.2660500395547E+27
n4
6.9188608090752E+36
n5
1.1221301778343E+46
2 √n
40272.104414843
3 √n
1174.9053538372
4 √n
200.67910806769
5 √n
69.50270857023
1 , 2 , 19 , 38 , 2129 , 4258 , 20047 , 40094 , 40451 , 80902 , 380893 , 761786 , 42680063 , 85360126 , 810921197 , 1621842394
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1621842393
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1621842394 can be divided by 16 positive divisors.
The sum of these divisors (counting 1621842394) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1100000101010110101100111011010
3
Ternary
11012000210010111211
4
Quaternary
1200222311213122
5
Quinary
11310142424034
6
Senary
424533413334
8
Octal
14052654732
10
Decimal
1621842394
12
Duodecimal
39319a24a
16
Hexadecimal
60ab59da
20
Vigesimal
156ga5je
36
Base36
qtlplm
md5
2f90d265aaf3cff99f716cf7beba74ea
sha1
09b261728cb638d805125452c877119be7e48026
sha256
5789b78d2fedf47303f83aac279dfa32c62a0a3dbc6aaeeb890b36d63c984993
sha512
90e588afadab9d21145f9edb3461a9a30f6c4f62ba4152c4234d9396e12f6cb4001c3d3246f4fd05cea5d58af4aa49c2b684ceeca90e19922ceb2cb7386bc01a
ripemd-160
16151426056448d7c7efc0f15de1e4e486948c86
Diameter
3243684788
Circumference
10190336300.542
Area
8.2635597106679E+18
Volume
1.7869588618815E+28
Surface area
3.3054238842672E+19
Circumference
10190336300.542
Perimeter
6487369576
Area
2630372750975651236
Diagonal
2293631509.6264
Surface area
1.5782236505854E+19
Volume
4.2660500395547E+27
Space diagonal
2809113428.2771
Perimeter
4865527182
Area
1.1389848118836E+18
Altitude
1404556714.1386
Surface area
1.1389848118836E+18
Volume
5.0275881864171E+26
Height
764543836.54215