19990768 is an even 8-digits composite number following 19990767
and preceding 19990769 . In scientific notation, it is written as 1.9990768 × 10^7.
The sum of its digits is 49. It has a total of 6 prime factors and 20 positive divisors.
There are 8567424 positive integers (up to 19990768) that are relatively prime to 19990768.
19990768 has 20 divisors, whose sum is 44265520
The reverse of 19990768 is 86709991
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
nineteen million nine hundred ninety thousand seven hundred sixty-eight
Scientific notation
1.9990768 × 10^7
Engineering notation
1.9990768 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 7 × 178489
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2498846
Product of the distinct prime numbers
The prime factorization of 19990768 is 2 × 2 × 2 × 2 × 7 × 178489.
Since it has a total of 6 prime factors.
7 , 10 , 34 , 19 , 602 , 582 , 2284 , 2311 , 73020 , 26083 , 842280 , 222246 , 4491166 , 2434493 , 34773026 , 14196839 , 168400238 , 305916163 , 5705824022 , 2660211449
n×2
39981536
n×3
59972304
n×4
79963072
n×5
99953840
n÷2
9995384
n÷3
6663589.3333333
n÷3
4997692
n÷5
3998153.6
n2
399630805229824
n3
7.9889267130026E+21
n4
1.5970478048864E+29
n5
3.1926212152393E+36
2 √n
4471.1036668814
3 √n
271.39998939241
4 √n
66.866311898305
5 √n
28.851333825058
1 , 2 , 4 , 7 , 8 , 14 , 16 , 28 , 56 , 112 , 178489 , 356978 , 713956 , 1249423 , 1427912 , 2498846 , 2855824 , 4997692 , 9995384 , 19990768
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
-19990767
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 19990768 can be divided by 20 positive divisors.
The sum of these divisors (counting 19990768) is 1, the average is 0.05.
Base
System
Value
2
Binary
1001100010000100011110000
3
Ternary
1101121122011211
4
Quaternary
1030100203300
5
Quinary
20104201033
6
Senary
1552245504
8
Octal
114204360
10
Decimal
19990768
12
Duodecimal
6840894
16
Hexadecimal
13108f0
20
Vigesimal
64igi8
36
Base36
bwgz4
md5
499bc257c5174e62f0cf8c86b2254bea
sha1
328190345c70a2c329bbb55c29b376a57c6a6a47
sha256
bb1621c19f81d11e5fd05cac07d5fe2fe4c9a1d916ae0416ebfabc6104a249be
sha512
ab13588d2a40984543826c84c1c577b8cae301d1b362034ea3668f9447ca9d8fd6df0bf644f16ca76a4776651f03e06d861ee72b63c3967a0b85b4f3628cf231
ripemd-160
c37d16b93be0f193307c7243ad82bf08ecbbc8f2
Diameter
39981536
Circumference
125605699.77684
Area
1.2554772018582E+15
Volume
3.3463937962182E+22
Surface area
5.0219088074328E+15
Circumference
125605699.77684
Perimeter
79963072
Area
399630805229824
Diagonal
28271215.227854
Surface area
2397784831378944
Volume
7.9889267130026E+21
Space diagonal
34625025.858322
Perimeter
59972304
Area
1.7304521473193E+14
Altitude
17312512.929161
Surface area
1.7304521473193E+14
Volume
9.4150404219442E+20
Height
9423738.4092847