19981556 is an even 8-digits composite number following 19981555
and preceding 19981557 . In scientific notation, it is written as 1.9981556 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 12 positive divisors.
There are 8563512 positive integers (up to 19981556) that are relatively prime to 19981556.
19981556 has 12 divisors, whose sum is 39963168
The reverse of 19981556 is 65518991
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
nineteen million nine hundred eighty-one thousand five hundred fifty-six
Scientific notation
1.9981556 × 10^7
Engineering notation
1.9981556 × 10^6
Prime Factorization
2 × 2 × 7 × 713627
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9990778
Product of the distinct prime numbers
The prime factorization of 19981556 is 2 × 2 × 7 × 713627.
Since it has a total of 4 prime factors.
9 , 2 , 77 , 75 , 297 , 1000 , 897 , 8964 , 49938 , 53596 , 244550 , 463132 , 1502892 , 2664208 , 62476109 , 79551950 , 159619448 , 219578578 , 7445505304 , 52274456
n×2
39963112
n×3
59944668
n×4
79926224
n×5
99907780
n÷2
9990778
n÷3
6660518.6666667
n÷3
4995389
n÷5
3996311.2
n2
399262580181136
n3
7.9778876045939E+21
n4
1.594106079329E+29
n5
3.1852719894052E+36
2 √n
4470.0733774738
3 √n
271.35829479898
4 √n
66.858607355178
5 √n
28.848674322527
1 , 2 , 4 , 7 , 14 , 28 , 713627 , 1427254 , 2854508 , 4995389 , 9990778 , 19981556
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
-19981555
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 19981556 can be divided by 12 positive divisors.
The sum of these divisors (counting 19981556) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100001110010011110100
3
Ternary
1101121011112122
4
Quaternary
1030032103310
5
Quinary
20103402211
6
Senary
1552135112
8
Octal
114162364
10
Decimal
19981556
12
Duodecimal
6837498
16
Hexadecimal
130e4f4
20
Vigesimal
64hdhg
36
Base36
bw9v8
md5
2755d271dec91d4ca0d125872b508144
sha1
c5b8f80fb21b3474500664d4074650e5fe8e676e
sha256
28bfaf5f0b1748fe5399e8c475cd233c46e5ace276048aa0f856048c00720055
sha512
ecb6843b88be9b5981b3d0566a644a835f18bb3c4af8c0961a22efa32ee55e88bc880831c574fe5881dd897b83124ab525d44819124fa20518c8f0f4f02a6135
ripemd-160
394d8d8fd802bff383d4dab96ea65a38f18208e5
Diameter
39963112
Circumference
125547819.07379
Area
1.2543203887504E+15
Volume
3.341769745301E+22
Surface area
5.0172815550014E+15
Circumference
125547819.07379
Perimeter
79926224
Area
399262580181136
Diagonal
28258187.492517
Surface area
2395575481086816
Volume
7.9778876045939E+21
Space diagonal
34609070.206283
Perimeter
59944668
Area
1.7288576860869E+14
Altitude
17304535.103141
Surface area
1.7288576860869E+14
Volume
9.4020307079207E+20
Height
9419395.8308392