19993989 is an odd 8-digits composite number following 19993988
and preceding 19993990 . In scientific notation, it is written as 1.9993989 × 10^7.
The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors.
There are 12494592 positive integers (up to 19993989) that are relatively prime to 19993989.
19993989 has 16 divisors, whose sum is 28340928
The reverse of 19993989 is 98939991
Previous prime number is 307
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
nineteen million nine hundred ninety-three thousand nine hundred eighty-nine
Scientific notation
1.9993989 × 10^7
Engineering notation
1.9993989 × 10^6
Prime Factorization
3 × 17 × 307 × 1277
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19993989
Product of the distinct prime numbers
The prime factorization of 19993989 is 3 × 17 × 307 × 1277.
Since it has a total of 4 prime factors.
10 , 3 , 11 , 21 , 3 , 34 , 9337 , 7679 , 6167 , 47831 , 155189 , 19121 , 9196409 , 2077312 , 16484681 , 19106587 , 72547397 , 291308381 , 9713246484 , 1736338865
n×2
39987978
n×3
59981967
n×4
79975956
n×5
99969945
n÷2
9996994.5
n÷3
6664663
n÷3
4998497.25
n÷5
3998797.8
n2
399759596132121
n3
7.9927889677101E+21
n4
1.5980773469972E+29
n5
3.195194089701E+36
2 √n
4471.4638542652
3 √n
271.41456499417
4 √n
66.869005183756
5 √n
28.852263495769
1 , 3 , 17 , 51 , 307 , 921 , 1277 , 3831 , 5219 , 15657 , 21709 , 65127 , 392039 , 1176117 , 6664663 , 19993989
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
-19993988
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 19993989 can be divided by 16 positive divisors.
The sum of these divisors (counting 19993989) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100010001010110000101
3
Ternary
1101121210121010
4
Quaternary
1030101112011
5
Quinary
20104301424
6
Senary
1552312433
8
Octal
114212605
10
Decimal
19993989
12
Duodecimal
6842719
16
Hexadecimal
1311585
20
Vigesimal
64j4j9
36
Base36
bwjgl
md5
8f0b3ca45a7d44f5d3f1f2a5a18654a5
sha1
240c9f4a563fa0eebc9316a59edc1aab00f49ec5
sha256
b3587a513f2bb5302f1ecb298de6eed69d6efcc26eae024f7731f7524ab19314
sha512
17164db651327af7110ba6a7e86320b9de1819db687e4fce27cbbdecabbb056b677b93ca938a462dec3d1488bd182afaac4187a6c16f6aaa3470dd6d8233853e
ripemd-160
3909e27e771e6d654961bba76cdbd7e21801dcc5
Diameter
39987978
Circumference
125625937.91671
Area
1.2558818104107E+15
Volume
3.3480116136869E+22
Surface area
5.0235272416428E+15
Circumference
125625937.91671
Perimeter
79975956
Area
399759596132121
Diagonal
28275770.409738
Surface area
2398557576792726
Volume
7.9927889677101E+21
Space diagonal
34630604.793973
Perimeter
59981967
Area
1.7310098282851E+14
Altitude
17315302.396987
Surface area
1.7310098282851E+14
Volume
9.419592132768E+20
Height
9425256.8032462