18493894 is an even 8-digits composite number following 18493893
and preceding 18493895 . In scientific notation, it is written as 1.8493894 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 9135456 positive integers (up to 18493894) that are relatively prime to 18493894.
18493894 has 8 divisors, whose sum is 28075320
The reverse of 18493894 is 49839481
Previous prime number is 83
Is Prime? no
Number parity even
Number length 8
Sum of Digits 46
Digital Root 1
Name
eighteen million four hundred ninety-three thousand eight hundred ninety-four
Scientific notation
1.8493894 × 10^7
Engineering notation
1.8493894 × 10^6
Prime Factorization
2 × 83 × 111409
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18493894
Product of the distinct prime numbers
The prime factorization of 18493894 is 2 × 83 × 111409.
Since it has a total of 3 prime factors.
7 , 9 , 39 , 86 , 456 , 466 , 6030 , 8433 , 15015 , 27035 , 768154 , 784856 , 9712745 , 3261926 , 81733292 , 99428609 , 180923662 , 465500997 , 4297275245 , 9308454235
n×2
36987788
n×3
55481682
n×4
73975576
n×5
92469470
n÷2
9246947
n÷3
6164631.3333333
n÷3
4623473.5
n÷5
3698778.8
n2
342024115283236
n3
6.3253577334919E+21
n4
1.1698049543528E+29
n5
2.1634248826476E+36
2 √n
4300.4527668607
3 √n
264.4495230189
4 √n
65.577837467095
5 √n
28.405711562509
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
-18493893
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 18493894 can be divided by 8 positive divisors.
The sum of these divisors (counting 18493894) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110100011000111000110
3
Ternary
1021210120212001
4
Quaternary
1012203013012
5
Quinary
14213301034
6
Senary
1500215514
8
Octal
106430706
10
Decimal
18493894
12
Duodecimal
623a59a
16
Hexadecimal
11a31c6
20
Vigesimal
5fbeee
36
Base36
b0dza
md5
2133db449eafac9ad792800aa9b65953
sha1
cf99d8c031a38381600f17c02a117324d6bb357f
sha256
1924bbcf688a9f21900568f015f5de06618f3271aeb9ae8f90afdb9c025ca004
sha512
741c1ff4f6272fd91d2233c7cc61f19346953572838f74f742acd5781c33604832f77d7fe91a141e0019849ac73173e62c5dac36e92ddc7964b8a2fc007a02d1
ripemd-160
52b03f80ddf32b14ce14be20064ae6974b81705a
Diameter
36987788
Circumference
116200563.05334
Area
1.0745004479244E+15
Volume
2.6495596515821E+22
Surface area
4.2980017916975E+15
Circumference
116200563.05334
Perimeter
73975576
Area
342024115283236
Diagonal
26154315.71589
Surface area
2052144691699416
Volume
6.3253577334919E+21
Space diagonal
32032364.037793
Perimeter
55481682
Area
1.4810078627109E+14
Altitude
16016182.018897
Surface area
1.4810078627109E+14
Volume
7.4545055779715E+20
Height
8718105.2386301