19997986 is an even 8-digits composite number following 19997985
and preceding 19997987 . In scientific notation, it is written as 1.9997986 × 10^7.
The sum of its digits is 58. It has a total of 3 prime factors and 8 positive divisors.
There are 9992628 positive integers (up to 19997986) that are relatively prime to 19997986.
19997986 has 8 divisors, whose sum is 30016080
The reverse of 19997986 is 68979991
Previous prime number is 3547
Is Prime? no
Number parity even
Number length 8
Sum of Digits 58
Digital Root 4
Name
nineteen million nine hundred ninety-seven thousand nine hundred eighty-six
Scientific notation
1.9997986 × 10^7
Engineering notation
1.9997986 × 10^6
Prime Factorization
2 × 3547 × 2819
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
19997986
Product of the distinct prime numbers
The prime factorization of 19997986 is 2 × 3547 × 2819.
Since it has a total of 3 prime factors.
8 , 3 , 79 , 87 , 908 , 333 , 2148 , 1989 , 46479 , 2478 , 389354 , 161658 , 1163549 , 1980180 , 61486394 , 87144833 , 778019094 , 511752636 , 4841233013 , 7457649305
n×2
39995972
n×3
59993958
n×4
79991944
n×5
99989930
n÷2
9998993
n÷3
6665995.3333333
n÷3
4999496.5
n÷5
3999597.2
n2
399919444056196
n3
7.9975834433636E+21
n4
1.5993556173422E+29
n5
3.198389124463E+36
2 √n
4471.9107772853
3 √n
271.4326499585
4 √n
66.872346880345
5 √n
28.853416975213
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
-19997985
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 19997986 can be divided by 8 positive divisors.
The sum of these divisors (counting 19997986) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010010010100100010
3
Ternary
1101122000002011
4
Quaternary
1030102110202
5
Quinary
20104413421
6
Senary
1552343134
8
Octal
114222442
10
Decimal
19997986
12
Duodecimal
6844aaa
16
Hexadecimal
1312522
20
Vigesimal
64jej6
36
Base36
bwmjm
md5
188588aa4c6d6bbe5aeb97b9e88ab6fc
sha1
c58bdcbf0098d41ce8dbab911f4f115f89729595
sha256
7451d3849a4d0a2f79ae4ff0c80e46f7e9bd10c443a69ea2fde02d834f9803c7
sha512
af5dbd8ebce83b5975d18fb1976849c52a4e1dc593c0b092f9d50b86bd32c5eef3c1d14a7160d432414ff6d629027eb27f52f7f436a2292b4b1b7018726219aa
ripemd-160
c2f93fa6f6bee146e2233eef5c903972cbd61746
Diameter
39995972
Circumference
125651051.80838
Area
1.2563839874747E+15
Volume
3.3500199189523E+22
Surface area
5.0255359498986E+15
Circumference
125651051.80838
Perimeter
79991944
Area
399919444056196
Diagonal
28281423.021347
Surface area
2399516664337176
Volume
7.9975834433636E+21
Space diagonal
34637527.801051
Perimeter
59993958
Area
1.7317019901001E+14
Altitude
17318763.900526
Surface area
1.7317019901001E+14
Volume
9.4252424765128E+20
Height
9427141.0071158