19811312 is an even 8-digits composite number following 19811311
and preceding 19811313 . In scientific notation, it is written as 1.9811312 × 10^7.
The sum of its digits is 26. It has a total of 6 prime factors and 20 positive divisors.
There are 9866688 positive integers (up to 19811312) that are relatively prime to 19811312.
19811312 has 20 divisors, whose sum is 38535480
The reverse of 19811312 is 21311891
Previous prime number is 269
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
nineteen million eight hundred eleven thousand three hundred twelve
Scientific notation
1.9811312 × 10^7
Engineering notation
1.9811312 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 269 × 4603
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2476414
Product of the distinct prime numbers
The prime factorization of 19811312 is 2 × 2 × 2 × 2 × 269 × 4603.
Since it has a total of 6 prime factors.
2 , 4 , 42 , 23 , 344 , 462 , 5723 , 9644 , 12845 , 56884 , 259723 , 394520 , 7770246 , 2896702 , 56058270 , 24084904 , 135976275 , 662672258 , 2493663987 , 9178837983
n×2
39622624
n×3
59433936
n×4
79245248
n×5
99056560
n÷2
9905656
n÷3
6603770.6666667
n÷3
4952828
n÷5
3962262.4
n2
392488083161344
n3
7.7757038717913E+21
n4
1.5404689542367E+29
n5
3.0518711078696E+36
2 √n
4450.9900022355
3 √n
270.58543295219
4 √n
66.715740288447
5 √n
28.799347456701
1 , 2 , 4 , 8 , 16 , 269 , 538 , 1076 , 2152 , 4304 , 4603 , 9206 , 18412 , 36824 , 73648 , 1238207 , 2476414 , 4952828 , 9905656 , 19811312
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19811311
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19811312 can be divided by 20 positive divisors.
The sum of these divisors (counting 19811312) is 1, the average is 0.05.
Base
System
Value
2
Binary
1001011100100101111110000
3
Ternary
1101021112000022
4
Quaternary
1023210233300
5
Quinary
20032430222
6
Senary
1544343012
8
Octal
113445760
10
Decimal
19811312
12
Duodecimal
6774a68
16
Hexadecimal
12e4bf0
20
Vigesimal
63g85c
36
Base36
bsmi8
md5
3b52f72cb5403baa42d54d917828f00e
sha1
c3ac34f06b1a1079e4edef7ff34007efd57cb7da
sha256
c1db668e48bd8df68ae39fca0947312ec177c31bb21b94c66aac119f6d96526c
sha512
66f1bc217a7559ca1d1e605262a778330a00baa251ace47cf7081d93d12f90e07e9f5703ac22b9668633e8ff71f80ee55b6731abca3897fd68517647dd346015
ripemd-160
1a572bd26ac782ca1e97423a481d84b7093575da
Diameter
39622624
Circumference
124478144.47435
Area
1.2330376786812E+15
Volume
3.2570792213479E+22
Surface area
4.9321507147249E+15
Circumference
124478144.47435
Perimeter
79245248
Area
392488083161344
Diagonal
28017426.118805
Surface area
2354928498968064
Volume
7.7757038717913E+21
Space diagonal
34314198.948599
Perimeter
59433936
Area
1.6995232535019E+14
Altitude
17157099.474299
Surface area
1.6995232535019E+14
Volume
9.1637548937369E+20
Height
9339142.0396016