18989818 is an even 8-digits composite number following 18989817
and preceding 18989819 . In scientific notation, it is written as 1.8989818 × 10^7.
The sum of its digits is 52. It has a total of 3 prime factors and 8 positive divisors.
There are 9400800 positive integers (up to 18989818) that are relatively prime to 18989818.
18989818 has 8 divisors, whose sum is 28767060
The reverse of 18989818 is 81898981
Previous prime number is 101
Is Prime? no
Number parity even
Number length 8
Sum of Digits 52
Digital Root 7
Name
eighteen million nine hundred eighty-nine thousand eight hundred eighteen
Scientific notation
1.8989818 × 10^7
Engineering notation
1.8989818 × 10^6
Prime Factorization
2 × 101 × 94009
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18989818
Product of the distinct prime numbers
The prime factorization of 18989818 is 2 × 101 × 94009.
Since it has a total of 3 prime factors.
10 , 1 , 92 , 61 , 709 , 854 , 6425 , 4073 , 51550 , 8443 , 313221 , 452251 , 2644479 , 5380903 , 17459164 , 68387470 , 5087271 , 519715940 , 6258544122 , 2519907671
n×2
37979636
n×3
56969454
n×4
75959272
n×5
94949090
n÷2
9494909
n÷3
6329939.3333333
n÷3
4747454.5
n÷5
3797963.6
n2
360613187673124
n3
6.8479788023125E+21
n4
1.3004187112377E+29
n5
2.4694714650199E+36
2 √n
4357.7308315223
3 √n
266.79249027501
4 √n
66.013111057746
5 √n
28.556446279796
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18989817
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18989818 can be divided by 8 positive divisors.
The sum of these divisors (counting 18989818) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011100001011111010
3
Ternary
1022201210010121
4
Quaternary
1020130023322
5
Quinary
14330133233
6
Senary
1515003454
8
Octal
110341372
10
Decimal
18989818
12
Duodecimal
643958a
16
Hexadecimal
121c2fa
20
Vigesimal
5ideai
36
Base36
bb0my
md5
a3ce5aebdf5d7f9d2fc785ab3c8f444e
sha1
b7b4c282d4a21cbf350202d7960d452b843a1fd9
sha256
dfbf3673ef408ec607bb446b9cf8525aa4f982b9611371b36113da64415a74b2
sha512
9c91f4ab9f04e90e8608f2d3f1a70fdadcbdefadba4f40e7656179dd9e6a4d150910989a2ec33b0f9f2ce9b3a3339416a491d9d23037ff7841a1e484de614482
ripemd-160
b75662e56530d9f712fe6ef4d159714b74591018
Diameter
37979636
Circumference
119316545.44361
Area
1.1328997411815E+15
Volume
2.8684746529711E+22
Surface area
4.5315989647259E+15
Circumference
119316545.44361
Perimeter
75959272
Area
360613187673124
Diagonal
26855658.162597
Surface area
2163679126038744
Volume
6.8479788023125E+21
Space diagonal
32891329.602486
Perimeter
56969454
Area
1.5615009073231E+14
Altitude
16445664.801243
Surface area
1.5615009073231E+14
Volume
8.0704204142281E+20
Height
8951886.0541989