18992081 is an odd 8-digits composite number following 18992080
and preceding 18992082 . In scientific notation, it is written as 1.8992081 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 18977700 positive integers (up to 18992081) that are relatively prime to 18992081.
18992081 has 4 divisors, whose sum is 19006464
The reverse of 18992081 is 18029981
Previous prime number is 12911
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million nine hundred ninety-two thousand eighty-one
Scientific notation
1.8992081 × 10^7
Engineering notation
1.8992081 × 10^6
Prime Factorization
12911 × 1471
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18992081
Product of the distinct prime numbers
The prime factorization of 18992081 is 12911 × 1471.
Since it has a total of 2 prime factors.
9 , 2 , 71 , 72 , 382 , 10 , 2776 , 9893 , 41706 , 85736 , 651856 , 649978 , 5027359 , 2627587 , 87665921 , 97064144 , 131259166 , 47543329 , 3409068248 , 3267002449
n×2
37984162
n×3
56976243
n×4
75968324
n×5
94960405
n÷2
9496040.5
n÷3
6330693.6666667
n÷3
4748020.25
n÷5
3798416.2
n2
360699140710561
n3
6.8504272970054E+21
n4
1.3010387010934E+29
n5
2.47094323953E+36
2 √n
4357.9904772728
3 √n
266.8030876633
4 √n
66.015077651039
5 √n
28.5571268567
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
-18992080
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 18992081 can be divided by 4 positive divisors.
The sum of these divisors (counting 18992081) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000011100101111010001
3
Ternary
1022201220020102
4
Quaternary
1020130233101
5
Quinary
14330221311
6
Senary
1515022145
8
Octal
110345721
10
Decimal
18992081
12
Duodecimal
643a955
16
Hexadecimal
121cbd1
20
Vigesimal
5ie041
36
Base36
bb2dt
md5
1bda90630a9874d86d490f50b213ea89
sha1
d80ed2af06c6fabe784d6c9a5fd9576215468b5c
sha256
e2a492836d475c4f6f2f2cd88e6b914f91342dc3de6765b2ae9a936352feb46c
sha512
a3e5baf3f5215ea4af91fc212378bc6bec11d808369f7b9275c8744da37fd245f6fe2fa8a28dca688378223918457f03533724fd7d6d34e883eb59f1ccabaaac
ripemd-160
4389937edd69272c27f9736eafc154e344675e0c
Diameter
37984162
Circumference
119330764.29196
Area
1.1331697706124E+15
Volume
2.8695002760297E+22
Surface area
4.5326790824498E+15
Circumference
119330764.29196
Perimeter
75968324
Area
360699140710561
Diagonal
26858858.527888
Surface area
2164194844263366
Volume
6.8504272970054E+21
Space diagonal
32895249.233464
Perimeter
56976243
Area
1.5618730948928E+14
Altitude
16447624.616732
Surface area
1.5618730948928E+14
Volume
8.0733059928966E+20
Height
8952952.8426295