18996813 is an odd 8-digits composite number following 18996812
and preceding 18996814 . In scientific notation, it is written as 1.8996813 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 11457600 positive integers (up to 18996813) that are relatively prime to 18996813.
18996813 has 16 divisors, whose sum is 26222976
The reverse of 18996813 is 31869981
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighteen million nine hundred ninety-six thousand eight hundred thirteen
Scientific notation
1.8996813 × 10^7
Engineering notation
1.8996813 × 10^6
Prime Factorization
33 × 3 × 311 × 617
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
18996813
Product of the distinct prime numbers
The prime factorization of 18996813 is 33 × 3 × 311 × 617.
Since it has a total of 4 prime factors.
7 , 5 , 81 , 52 , 191 , 293 , 3796 , 8187 , 78335 , 22352 , 130707 , 762632 , 9669004 , 3916143 , 21516400 , 89860456 , 854619391 , 156274809 , 7100958446 , 2789784594
n×2
37993626
n×3
56990439
n×4
75987252
n×5
94984065
n÷2
9498406.5
n÷3
6332271
n÷3
4749203.25
n÷5
3799362.6
n2
360878904156969
n3
6.8555490579149E+21
n4
1.3023358346553E+29
n5
2.4740230314147E+36
2 √n
4358.5333542374
3 √n
266.82524439572
4 √n
66.019189287944
5 √n
28.558549753524
1 , 3 , 33 , 99 , 311 , 617 , 933 , 1851 , 10263 , 20361 , 30789 , 61083 , 191887 , 575661 , 6332271 , 18996813
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
-18996812
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 18996813 can be divided by 16 positive divisors.
The sum of these divisors (counting 18996813) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001000011101111001001101
3
Ternary
1022202010201200
4
Quaternary
1020131321031
5
Quinary
14330344223
6
Senary
1515100113
8
Octal
110357115
10
Decimal
18996813
12
Duodecimal
6441639
16
Hexadecimal
121de4d
20
Vigesimal
5iec0d
36
Base36
bb619
md5
a8e0fedf168ea03a22c6342aec011c5e
sha1
4c7b2b8f5b36494e45f2d65ceb8af834d298e40a
sha256
5baa6a771897ae544d687fd105d98b375ef17cbd18b51e4bc5198f7d44a85caf
sha512
1d450af1ea98db0b7d7596558366730dea3e9e5314c782d7b548777e37e430e7efd9e363badc9721f8b546f8fbd6a2aac55c852c094ff18f4c48ddbee504f08e
ripemd-160
0f46dea609572689e28ebab923fb0d44fc144827
Diameter
37993626
Circumference
119360496.32484
Area
1.1337345141351E+15
Volume
2.8716456742226E+22
Surface area
4.5349380565403E+15
Circumference
119360496.32484
Perimeter
75987252
Area
360878904156969
Diagonal
26865550.586466
Surface area
2165273424941814
Volume
6.8555490579149E+21
Space diagonal
32903445.297885
Perimeter
56990439
Area
1.5626514934491E+14
Altitude
16451722.648942
Surface area
1.5626514934491E+14
Volume
8.0793420460144E+20
Height
8955183.5288218