19981188 is an even 8-digits composite number following 19981187
and preceding 19981189 . In scientific notation, it is written as 1.9981188 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 6268032 positive integers (up to 19981188) that are relatively prime to 19981188.
19981188 has 12 divisors, whose sum is 35046480
The reverse of 19981188 is 88118991
Previous prime number is 459
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
nineteen million nine hundred eighty-one thousand one hundred eighty-eight
Scientific notation
1.9981188 × 10^7
Engineering notation
1.9981188 × 10^6
Prime Factorization
2 × 2 × 459 × 10883
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9990594
Product of the distinct prime numbers
The prime factorization of 19981188 is 2 × 2 × 459 × 10883.
Since it has a total of 4 prime factors.
3 , 5 , 99 , 77 , 346 , 1000 , 3578 , 5241 , 47652 , 94248 , 887289 , 307428 , 3662182 , 9289095 , 59629213 , 61628220 , 215701819 , 293659080 , 6453623611 , 2266971798
n×2
39962376
n×3
59943564
n×4
79924752
n×5
99905940
n÷2
9990594
n÷3
6660396
n÷3
4995297
n÷5
3996237.6
n2
399247873891344
n3
7.9774468268232E+21
n4
1.5939886480676E+29
n5
3.1849786846904E+36
2 √n
4470.032214649
3 √n
271.35662892162
4 √n
66.858299519574
5 √n
28.848568060629
1 , 2 , 4 , 459 , 918 , 1836 , 10883 , 21766 , 43532 , 4995297 , 9990594 , 19981188
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19981187
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19981188 can be divided by 12 positive divisors.
The sum of these divisors (counting 19981188) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100001110001110000100
3
Ternary
1101121011001000
4
Quaternary
1030032032010
5
Quinary
20103344223
6
Senary
1552133300
8
Octal
114161604
10
Decimal
19981188
12
Duodecimal
6837230
16
Hexadecimal
130e384
20
Vigesimal
64hcj8
36
Base36
bw9l0
md5
c55f0e888342a1e58ab82716dffb54c5
sha1
292066785618d2e8b2c8ba0ad8eeaf840e2725fb
sha256
83d4d1bf6684a5f04f335ccc870492592735ca706f9967d18c3a385152810b59
sha512
7f35af5bff4eb49bf7a6b52dfc2a24425f1ce239a6f10b052c575d03ac3ec964f944ee1d386a9a7f23e24e1b18dc4bf657ed5c3f8bf214269671a2a99b5ebe68
ripemd-160
7afc20802372f72648434eb12206cb9b36a7b454
Diameter
39962376
Circumference
125545506.86159
Area
1.2542741875784E+15
Volume
3.3415851127401E+22
Surface area
5.0170967503136E+15
Circumference
125545506.86159
Perimeter
79924752
Area
399247873891344
Diagonal
28257667.061927
Surface area
2395487243348064
Volume
7.9774468268232E+21
Space diagonal
34608432.811586
Perimeter
59943564
Area
1.7287940059841E+14
Altitude
17304216.405793
Surface area
1.7287940059841E+14
Volume
9.4015112463364E+20
Height
9419222.3539755