1991498428 is an even 10-digits composite number following 1991498427
and preceding 1991498429 . In scientific notation, it is written as 1.991498428 × 10^9.
The sum of its digits is 55. It has a total of 3 prime factors and 6 positive divisors.
There are 995749212 positive integers (up to 1991498428) that are relatively prime to 1991498428.
1991498428 has 6 divisors, whose sum is 3485122256
The reverse of 1991498428 is 8248941991
Previous prime number is 2
Is Prime? no
Number parity even
Number length 10
Sum of Digits 55
Digital Root 1
Name
one billion nine hundred ninety-one million four hundred ninety-eight thousand four hundred twenty-eight
Scientific notation
1.991498428 × 10^9
Engineering notation
1.991498428 × 10^9
Prime Factorization
2 × 2 × 497874607
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
995749214
Product of the distinct prime numbers
The prime factorization of 1991498428 is 2 × 2 × 497874607.
Since it has a total of 3 prime factors.
5 , 7 , 63 , 91 , 422 , 136 , 1864 , 9190 , 25633 , 42702 , 816749 , 855538 , 3864798 , 5071946 , 12697101 , 4209771 , 594853841 , 765378392 , 7268804153 , 8126355333
n×2
3982996856
n×3
5974495284
n×4
7965993712
n×5
9957492140
n÷2
995749214
n÷3
663832809.33333
n÷3
497874607
n÷5
398299685.6
n2
3966065988726471184
n3
7.898414181893E+27
n4
1.5729679426933E+37
n5
3.1325631851681E+46
2 √n
44626.207860404
3 √n
1258.133296124
4 √n
211.24916061467
5 √n
72.416243665409
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1991498427
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1991498428 can be divided by 6 positive divisors.
The sum of these divisors (counting 1991498428) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1110110101100111101101010111100
3
Ternary
12010210100121021001
4
Quaternary
1312230331222330
5
Quinary
13034310422203
6
Senary
525340420044
8
Octal
16654755274
10
Decimal
1991498428
12
Duodecimal
476b47624
16
Hexadecimal
76b3dabc
20
Vigesimal
1b26h618
36
Base36
wxoq0s
md5
699657f125f56ee7415ed56f6a6d015f
sha1
c2fb2eebf075303db3a9ba9085cae97341f57d8b
sha256
1b64819dd96df1b846f7fd7ca2f773df0ba7308241eeb9b86a97bf56e70dd4b8
sha512
ea112855058055a5d313360aa685076ea6df7134f9b7c85f3cef2a0728f90a27002504a22be18059bb9b3f1cf57a9192bed60eb6c9549bf93dabd01968bb0026
ripemd-160
09c1ebff47ae8674f68bc57b1f053cd2fe2b78c5
Diameter
3982996856
Circumference
12512953662.081
Area
1.2459763773835E+19
Volume
3.3084799958459E+28
Surface area
4.9839055095342E+19
Circumference
12512953662.081
Perimeter
7965993712
Area
3966065988726471184
Diagonal
2816404086.3223
Surface area
2.3796395932359E+19
Volume
7.898414181893E+27
Space diagonal
3449376460.4895
Perimeter
5974495284
Area
1.7173569496613E+18
Altitude
1724688230.2448
Surface area
1.7173569496613E+18
Volume
9.3083703810609E+26
Height
938801362.10743