18449985 is an odd 8-digits composite number following 18449984
and preceding 18449986 . In scientific notation, it is written as 1.8449985 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 9839984 positive integers (up to 18449985) that are relatively prime to 18449985.
18449985 has 8 divisors, whose sum is 29520000
The reverse of 18449985 is 58994481
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighteen million four hundred forty-nine thousand nine hundred eighty-five
Scientific notation
1.8449985 × 10^7
Engineering notation
1.8449985 × 10^6
Prime Factorization
3 × 5 × 1229999
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18449985
Product of the distinct prime numbers
The prime factorization of 18449985 is 3 × 5 × 1229999.
Since it has a total of 3 prime factors.
8 , 3 , 17 , 1 , 271 , 55 , 2653 , 836 , 51398 , 98983 , 699564 , 563988 , 971840 , 2090033 , 68780717 , 64441376 , 871087126 , 995644510 , 19386297 , 6460182844
n×2
36899970
n×3
55349955
n×4
73799940
n×5
92249925
n÷2
9224992.5
n÷3
6149995
n÷3
4612496.25
n÷5
3689997
n2
340401946500225
n3
6.2804108069E+21
n4
1.1587348518114E+29
n5
2.1378640634898E+36
2 √n
4295.3445729068
3 √n
264.24006801492
4 √n
65.538878331162
5 √n
28.392210321454
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
-18449984
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 18449985 can be divided by 8 positive divisors.
The sum of these divisors (counting 18449985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1000110011000011001000001
3
Ternary
1021201100121210
4
Quaternary
1012120121001
5
Quinary
14210344420
6
Senary
1455240333
8
Octal
106303101
10
Decimal
18449985
12
Duodecimal
62190a9
16
Hexadecimal
1198641
20
Vigesimal
5f64j5
36
Base36
azg3l
md5
110dc52ba9ea0d7441a58229349f552e
sha1
862b768cff88c2a87d10d8c7776b2ab977129750
sha256
7430967037b732ef1d1ec75577278333151cbd1d9957f46f5d84dd5be7bf1dc5
sha512
81f24e8bfb2b7f41e83a8c178efb3a6c30a76b47af38e04356a2497a9b254f5b100955b4f98e8b6b1b98aeec0593c32750dfe86498e3217ad181e19926f1bb6c
ripemd-160
486a75939792e114fe99ad5a310d4aa831460024
Diameter
36899970
Circumference
115924674.66968
Area
1.0694042543928E+15
Volume
2.6307323269977E+22
Surface area
4.2776170175711E+15
Circumference
115924674.66968
Perimeter
73799940
Area
340401946500225
Diagonal
26092219.01258
Surface area
2042411679001350
Volume
6.2804108069E+21
Space diagonal
31956311.418884
Perimeter
55349955
Area
1.4739836658343E+14
Altitude
15978155.709442
Surface area
1.4739836658343E+14
Volume
7.4015351169937E+20
Height
8697406.3375267