18985243 is an odd 8-digits composite number following 18985242
and preceding 18985244 . In scientific notation, it is written as 1.8985243 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 17708544 positive integers (up to 18985243) that are relatively prime to 18985243.
18985243 has 8 divisors, whose sum is 20281968
The reverse of 18985243 is 34258981
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighteen million nine hundred eighty-five thousand two hundred forty-three
Scientific notation
1.8985243 × 10^7
Engineering notation
1.8985243 × 10^6
Prime Factorization
17 × 113 × 9883
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18985243
Product of the distinct prime numbers
The prime factorization of 18985243 is 17 × 113 × 9883.
Since it has a total of 3 prime factors.
7 , 9 , 62 , 52 , 787 , 26 , 5155 , 6167 , 78077 , 74088 , 249313 , 277786 , 3422904 , 6729676 , 29526841 , 19991358 , 787214291 , 351445103 , 4680438441 , 2705419831
n×2
37970486
n×3
56955729
n×4
75940972
n×5
94926215
n÷2
9492621.5
n÷3
6328414.3333333
n÷3
4746310.75
n÷5
3797048.6
n2
360439451769049
n3
6.8430305786222E+21
n4
1.2991659839157E+29
n5
2.4664981901974E+36
2 √n
4357.2058707387
3 √n
266.77106346485
4 √n
66.009134752235
5 √n
28.555070191478
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
-18985242
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 18985243 can be divided by 8 positive divisors.
The sum of these divisors (counting 18985243) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011011000100011011
3
Ternary
1022201112212011
4
Quaternary
1020123010123
5
Quinary
14330011433
6
Senary
1514530351
8
Octal
110330433
10
Decimal
18985243
12
Duodecimal
64369b7
16
Hexadecimal
121b11b
20
Vigesimal
5id323
36
Base36
bax3v
md5
050fcc152b31561559f30a031a5c64f1
sha1
e6c1a542aeba961d06c6160d3553e60c2c98fbc2
sha256
25bde22dcc02cc71240db90cb7a1a5d599f8ba7d18853e42c1e666d9b3701e39
sha512
e94813d877d6990a4ab0117d23c12023916786fa9c7323d6fe32042101819f3ad078b129fa33ed1e9f59754d54b5d3a54c458fe7820b28573091eae13df0fcbb
ripemd-160
9a143dc041b72845dddfda866b2112f32865ce6c
Diameter
37970486
Circumference
119287799.87083
Area
1.1323539337416E+15
Volume
2.8664019458786E+22
Surface area
4.5294157349663E+15
Circumference
119287799.87083
Perimeter
75940972
Area
360439451769049
Diagonal
26849188.135549
Surface area
2162636710614294
Volume
6.8430305786222E+21
Space diagonal
32883405.470041
Perimeter
56955729
Area
1.5607486087907E+14
Altitude
16441702.735021
Surface area
1.5607486087907E+14
Volume
8.0645888766844E+20
Height
8949729.3785163