18996985 is an odd 8-digits composite number following 18996984
and preceding 18996986 . In scientific notation, it is written as 1.8996985 × 10^7.
The sum of its digits is 55. It has a total of 3 prime factors and 8 positive divisors.
There are 13026480 positive integers (up to 18996985) that are relatively prime to 18996985.
18996985 has 8 divisors, whose sum is 26053056
The reverse of 18996985 is 58969981
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
eighteen million nine hundred ninety-six thousand nine hundred eighty-five
Scientific notation
1.8996985 × 10^7
Engineering notation
1.8996985 × 10^6
Prime Factorization
5 × 7 × 542771
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18996985
Product of the distinct prime numbers
The prime factorization of 18996985 is 5 × 7 × 542771.
Since it has a total of 3 prime factors.
4 , 1 , 24 , 23 , 770 , 350 , 8659 , 1087 , 10071 , 13396 , 151207 , 966563 , 618238 , 6508860 , 24027700 , 13987684 , 880513054 , 768096408 , 407206137 , 6136066262
n×2
37993970
n×3
56990955
n×4
75987940
n×5
94984925
n÷2
9498492.5
n÷3
6332328.3333333
n÷3
4749246.25
n÷5
3799397
n2
360885439090225
n3
6.8557352731154E+21
n4
1.3023830014734E+29
n5
2.4741350343246E+36
2 √n
4358.5530856008
3 √n
266.82604968525
4 √n
66.019338724352
5 √n
28.558601468017
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
-18996984
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 18996985 can be divided by 8 positive divisors.
The sum of these divisors (counting 18996985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011101111011111001
3
Ternary
1022202010222001
4
Quaternary
1020131323321
5
Quinary
14330400420
6
Senary
1515101001
8
Octal
110357371
10
Decimal
18996985
12
Duodecimal
6441761
16
Hexadecimal
121def9
20
Vigesimal
5iec95
36
Base36
bb661
md5
4c4a05214ed3f5f622d325155610cc86
sha1
b4fdb348d90f789093630c9759abee94fc1386ea
sha256
017d481dfde36a1d741a006e922523e25c815f444de09f566fed8901d4cc1476
sha512
cab31cc96ccdb2cb861cf8f22b9cd7d58c37c7dda690ad5d062943867d9e54efaaa0a9c6c56f2beeedb4063d3e7371719ea42a022589f1368fc7776243eff2b8
ripemd-160
c4d5738c401666a85e21840d97498a82773e6863
Diameter
37993970
Circumference
119361577.03271
Area
1.1337550442334E+15
Volume
2.8717236758634E+22
Surface area
4.5350201769335E+15
Circumference
119361577.03271
Perimeter
75987940
Area
360885439090225
Diagonal
26865793.831198
Surface area
2165312634541350
Volume
6.8557352731154E+21
Space diagonal
32903743.210624
Perimeter
56990955
Area
1.5626797905402E+14
Altitude
16451871.605312
Surface area
1.5626797905402E+14
Volume
8.0795615027329E+20
Height
8955264.6103994