1918442421 is an odd 10-digits composite number following 1918442420
and preceding 1918442422 . In scientific notation, it is written as 1.918442421 × 10^9.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 1093912560 positive integers (up to 1918442421) that are relatively prime to 1918442421.
1918442421 has 16 divisors, whose sum is 2604072960
The reverse of 1918442421 is 1242448191
Previous prime number is 63
Is Prime? no Number parity odd Number length 10 Sum of Digits 36 Digital Root 9
Name
one billion nine hundred eighteen million four hundred forty-two thousand four hundred twenty-one
Scientific notation
1.918442421 × 10^9
Engineering notation
1.918442421 × 10^9
Prime Factorization
479 × 3 × 63 × 21191
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
1918442421 Product of the distinct prime numbers
The prime factorization of 1918442421 is 479 × 3 × 63 × 21191.
Since it has a total of 4 prime factors.
5 , 1 , 91 , 80 , 4 , 984 , 2228 , 1853 , 85210 , 34503 , 962735 , 928718 , 1853182 , 2464681 , 73842265 , 40639187 , 980557979 , 895398210 , 9954147470 , 8657899247
n×2
3836884842
n×3
5755327263
n×4
7673769684
n×5
9592212105
n÷2
959221210.5
n÷3
639480807
n÷3
479610605.25
n÷5
383688484.2
n2
3680421322692341241
n3
7.0606763926059E+27
n4
1.3545501112528E+37
n5
2.5986263947977E+46
2 √n43800.027636978
3 √n1242.5568170049
4 √n209.28456139185
5 √n71.876968814078
1 , 3 , 63 , 189 , 479 , 1437 , 21191 , 30177 , 63573 , 90531 , 1335033 , 4005099 , 10150489 , 30451467 , 639480807 , 1918442421
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
-1918442420 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 1918442421 can be divided by 16 positive divisors.
The sum of these divisors (counting 1918442421) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110010010110010001101110110101
3
Ternary
11221200212222021000
4
Quaternary
1302112101232311
5
Quinary
12412110124141
6
Senary
514210513513
8
Octal
16226215665
10
Decimal
1918442421
12
Duodecimal
456595899
16
Hexadecimal
72591bb5
20
Vigesimal
19ja5611
36
Base36
vq6vn9
md5
ee6363b3222c83d1669fdc4baa44abff
sha1
5d88d6ad64a05ad6813371bb548bc3adf887ef44
sha256
8054110d0ef21cac881237672c99c2fc97809c3b903727aa219e83e587fc29fa
sha512
b48bc3d419a7f2ad20422bcb61b6e0c7586f64f30f188d217d0f60543ebd9ebb7dd853f59332daf05769c11d54ed679b0087a43b2a4dcb366b87397efc13d02a
ripemd-160
2d16321afedad57a17877670e9e171a9d1ee9237
Diameter
3836884842
Circumference
12053929232.297
Area
1.1562384589485E+19
Volume
2.9575692112514E+28
Surface area
4.6249538357942E+19
Circumference
12053929232.297
Perimeter
7673769684
Area
3680421322692341241
Diagonal
2713087290.4101
Surface area
2.2082527936154E+19
Volume
7.0606763926059E+27
Space diagonal
3322839744.5674
Perimeter
5755327263
Area
1.5936691810407E+18
Altitude
1661419872.2837
Surface area
1.5936691810407E+18
Volume
8.3210869282924E+26
Height
904362430.13669