20181492 is an even 8-digits composite number following 20181491
and preceding 20181493 . In scientific notation, it is written as 2.0181492 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 18 positive divisors.
There are 6727152 positive integers (up to 20181492) that are relatively prime to 20181492.
20181492 has 18 divisors, whose sum is 51014418
The reverse of 20181492 is 29418102
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred eighty-one thousand four hundred ninety-two
Scientific notation
2.0181492 × 10^7
Engineering notation
2.0181492 × 10^6
Prime Factorization
2 × 2 × 3 × 3 × 560597
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
3363582
Product of the distinct prime numbers
The prime factorization of 20181492 is 2 × 2 × 3 × 3 × 560597.
Since it has a total of 5 prime factors.
10 , 10 , 89 , 39 , 206 , 581 , 8886 , 6930 , 95319 , 56792 , 272343 , 309886 , 4563675 , 4004171 , 17123422 , 50902079 , 239348824 , 191345648 , 1340798280 , 881689611
n×2
40362984
n×3
60544476
n×4
80725968
n×5
100907460
n÷2
10090746
n÷3
6727164
n÷3
5045373
n÷5
4036298.4
n2
407292619346064
n3
8.2197727389916E+21
n4
1.6588727777378E+29
n5
3.3478527692933E+36
2 √n
4492.3815510261
3 √n
272.26036559936
4 √n
67.025230704759
5 √n
28.906176758488
1 , 2 , 3 , 4 , 6 , 9 , 12 , 18 , 36 , 560597 , 1121194 , 1681791 , 2242388 , 3363582 , 5045373 , 6727164 , 10090746 , 20181492
18 divisors
τ
Total Divisors
18
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20181491
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.055555555555556
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
18
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20181492 can be divided by 18 positive divisors.
The sum of these divisors (counting 20181492) is 1, the average is 0.055555555555556.
Base
System
Value
2
Binary
1001100111111000111110100
3
Ternary
1101222022210200
4
Quaternary
1030333013310
5
Quinary
20131301432
6
Senary
2000320500
8
Octal
114770764
10
Decimal
20181492
12
Duodecimal
6913130
16
Hexadecimal
133f1f4
20
Vigesimal
662dec
36
Base36
c0k50
md5
c6b9d520bb8515a9c3f6ab39bef3b786
sha1
c93322a1eb240e8a2d3fa50c5b8602a30d7aa71e
sha256
e6c0e00635afbde3353037b794c4f54b149e4c9c4254bd8c635ba9d7bcb1d3e5
sha512
0c16ed59a326fb580606015ef477f28fcd99824df779086195aafd921a79ae1d443b64a537ecd9daf0161c891697d337d97a21774944e220bd831952e9c85da2
ripemd-160
800698e592fb3d640a3bb5826b6eb916f742664d
Diameter
40362984
Circumference
126804054.01136
Area
1.2795475007989E+15
Volume
3.4430903534658E+22
Surface area
5.1181900031958E+15
Circumference
126804054.01136
Perimeter
80725968
Area
407292619346064
Diagonal
28540939.695324
Surface area
2443755716076384
Volume
8.2197727389916E+21
Space diagonal
34955369.516545
Perimeter
60544476
Area
1.763628775638E+14
Altitude
17477684.758272
Surface area
1.763628775638E+14
Volume
9.6870950725888E+20
Height
9513646.565108