19989986 is an even 8-digits composite number following 19989985
and preceding 19989987 . In scientific notation, it is written as 1.9989986 × 10^7.
The sum of its digits is 59. It has a total of 4 prime factors and 16 positive divisors.
There are 9789120 positive integers (up to 19989986) that are relatively prime to 19989986.
19989986 has 16 divisors, whose sum is 30608160
The reverse of 19989986 is 68998991
Previous prime number is 241
Is Prime? no
Number parity even
Number length 8
Sum of Digits 59
Digital Root 5
Name
nineteen million nine hundred eighty-nine thousand nine hundred eighty-six
Scientific notation
1.9989986 × 10^7
Engineering notation
1.9989986 × 10^6
Prime Factorization
2 × 67 × 241 × 619
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19989986
Product of the distinct prime numbers
The prime factorization of 19989986 is 2 × 67 × 241 × 619.
Since it has a total of 4 prime factors.
4 , 2 , 25 , 65 , 609 , 224 , 1654 , 1478 , 12349 , 7747 , 853588 , 897958 , 8263938 , 954909 , 87036425 , 4029882 , 650320347 , 430501749 , 5832886550 , 125562265
n×2
39979972
n×3
59969958
n×4
79959944
n×5
99949930
n÷2
9994993
n÷3
6663328.6666667
n÷3
4997496.5
n÷5
3997997.2
n2
399599540280196
n3
7.9879892158076E+21
n4
1.5967979259214E+29
n5
3.1919968183999E+36
2 √n
4471.0162155823
3 √n
271.39645046619
4 √n
66.865657968664
5 √n
28.851108099902
1 , 2 , 67 , 134 , 241 , 482 , 619 , 1238 , 16147 , 32294 , 41473 , 82946 , 149179 , 298358 , 9994993 , 19989986
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19989985
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19989986 can be divided by 16 positive divisors.
The sum of these divisors (counting 19989986) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010000010111100010
3
Ternary
1101121121002212
4
Quaternary
1030100113202
5
Quinary
20104134421
6
Senary
1552242122
8
Octal
114202742
10
Decimal
19989986
12
Duodecimal
6840342
16
Hexadecimal
13105e2
20
Vigesimal
64iej6
36
Base36
bwgde
md5
f012697c4082a4811b94a16030b80a95
sha1
fd742a585d817d8bb66ccad772709cc134ba6e1f
sha256
a70c9eac258d4d2d189891eebb088025f45578d1bafeceeaa226c36466690836
sha512
99207957c462ef1a376e514f86b0ceaddcdf21a372d712339b49090228c7e10c87ccf82556292db67c2a5ce8d576f2bbf3037714ddaf73938487710a6ffb35fd
ripemd-160
e27cebd8a4382c3a2a06729a30ee514ab593e63e
Diameter
39979972
Circumference
125600786.32593
Area
1.2553789801221E+15
Volume
3.3460010983114E+22
Surface area
5.0215159204885E+15
Circumference
125600786.32593
Perimeter
79959944
Area
399599540280196
Diagonal
28270109.312848
Surface area
2397597241681176
Volume
7.9879892158076E+21
Space diagonal
34623671.394591
Perimeter
59969958
Area
1.7303167661162E+14
Altitude
17311835.697295
Surface area
1.7303167661162E+14
Volume
9.4139355709042E+20
Height
9423369.7709494