18989839 is an odd 8-digits composite number following 18989838
and preceding 18989840 . In scientific notation, it is written as 1.8989839 × 10^7.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 17263480 positive integers (up to 18989839) that are relatively prime to 18989839.
18989839 has 4 divisors, whose sum is 20716200
The reverse of 18989839 is 93898981
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
eighteen million nine hundred eighty-nine thousand eight hundred thirty-nine
Scientific notation
1.8989839 × 10^7
Engineering notation
1.8989839 × 10^6
Prime Factorization
11 × 1726349
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18989839
Product of the distinct prime numbers
The prime factorization of 18989839 is 11 × 1726349.
Since it has a total of 2 prime factors.
7 , 4 , 25 , 32 , 557 , 424 , 9254 , 5370 , 43252 , 12252 , 547774 , 826374 , 7936592 , 154250 , 24047433 , 32693126 , 130257865 , 669213216 , 530211979 , 1167715274
n×2
37979678
n×3
56969517
n×4
75959356
n×5
94949195
n÷2
9494919.5
n÷3
6329946.3333333
n÷3
4747459.75
n÷5
3797967.8
n2
360613985245921
n3
6.8480015209684E+21
n4
1.3004244635495E+29
n5
2.4694851194465E+36
2 √n
4357.7332410325
3 √n
266.79258861965
4 √n
66.013129307983
5 √n
28.556452595655
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
-18989838
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 18989839 can be divided by 4 positive divisors.
The sum of these divisors (counting 18989839) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000011100001100001111
3
Ternary
1022201210011101
4
Quaternary
1020130030033
5
Quinary
14330133324
6
Senary
1515003531
8
Octal
110341417
10
Decimal
18989839
12
Duodecimal
64395a7
16
Hexadecimal
121c30f
20
Vigesimal
5idebj
36
Base36
bb0nj
md5
52300a6b42ce41aef4acc6b118061175
sha1
861bc94dcfdac35a4d1568b9ad086eaab87be81e
sha256
dee47772bbbb841b8ec544b80c05faf1cb2c5f4fcb51b95412ae3fe03edca3bf
sha512
424b503057fa0ee3422c3a2ff83f3ca4aa333dc6a9c4112574b0cbc4342ab6c51d305e13bb9de6756160b23cf3d9342c6d2c83ca34e73dd789a1a6ab10ea6802
ripemd-160
bd29898bd54a12bc4717e5118ab39700872b26cf
Diameter
37979678
Circumference
119316677.39051
Area
1.1329022468303E+15
Volume
2.8684841693395E+22
Surface area
4.5316089873213E+15
Circumference
119316677.39051
Perimeter
75959356
Area
360613985245921
Diagonal
26855687.861082
Surface area
2163683911475526
Volume
6.8480015209684E+21
Space diagonal
32891365.975553
Perimeter
56969517
Area
1.5615043609146E+14
Altitude
16445682.987776
Surface area
1.5615043609146E+14
Volume
8.0704471884209E+20
Height
8951895.9536938