19985655 is an odd 8-digits composite number following 19985654
and preceding 19985656 . In scientific notation, it is written as 1.9985655 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 10398720 positive integers (up to 19985655) that are relatively prime to 19985655.
19985655 has 8 divisors, whose sum is 26778352
The reverse of 19985655 is 55658991
Previous prime number is 205
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
nineteen million nine hundred eighty-five thousand six hundred fifty-five
Scientific notation
1.9985655 × 10^7
Engineering notation
1.9985655 × 10^6
Prime Factorization
3 × 205 × 32497
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19985655
Product of the distinct prime numbers
The prime factorization of 19985655 is 3 × 205 × 32497.
Since it has a total of 3 prime factors.
1 , 9 , 48 , 56 , 747 , 551 , 7884 , 6515 , 7076 , 1858 , 20573 , 792657 , 5888657 , 6990515 , 33112809 , 92615016 , 213637685 , 742842475 , 1086797307 , 2816189238
n×2
39971310
n×3
59956965
n×4
79942620
n×5
99928275
n÷2
9992827.5
n÷3
6661885
n÷3
4996413.75
n÷5
3997131
n2
399426405779025
n3
7.9827983437896E+21
n4
1.5954145363355E+29
n5
3.1885404505186E+36
2 √n
4470.5318475546
3 √n
271.37684893628
4 √n
66.8620359214
5 √n
28.849857824093
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
-19985654
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 19985655 can be divided by 8 positive divisors.
The sum of these divisors (counting 19985655) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100001111010011110111
3
Ternary
1101121101011110
4
Quaternary
1030033103313
5
Quinary
20104020110
6
Senary
1552210103
8
Octal
114172367
10
Decimal
19985655
12
Duodecimal
6839933
16
Hexadecimal
130f4f7
20
Vigesimal
64i42f
36
Base36
bwd13
md5
cb6d64b9d2a25a3e271f9c195027363a
sha1
6445a46df51af755d6050dd4308e91af1aa86cd6
sha256
6819e297c25e4ba06635e5ea87c91d0a0d8fcea9503d97afd7380e229aab08b5
sha512
6271d1d212797aa84a1fa3d82241f72959d925a1fa7826f915857e86aaaa4ca8ce23ffe01ddc90179993e7977a7cadea38654bb04720cd5d506be6f0a7fba814
ripemd-160
fe870550bd4fe695029913fe96146d48e7553ea0
Diameter
39971310
Circumference
125573573.85036
Area
1.2548350620452E+15
Volume
3.3438267509251E+22
Surface area
5.0193402481806E+15
Circumference
125573573.85036
Perimeter
79942620
Area
399426405779025
Diagonal
28263984.35391
Surface area
2396558434674150
Volume
7.9827983437896E+21
Space diagonal
34616169.882543
Perimeter
59956965
Area
1.7295670717347E+14
Altitude
17308084.941271
Surface area
1.7295670717347E+14
Volume
9.4078180695639E+20
Height
9421328.1179699