1991231069 is an odd 10-digits composite number following 1991231068
and preceding 1991231070 . In scientific notation, it is written as 1.991231069 × 10^9.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 1991086080 positive integers (up to 1991231069) that are relatively prime to 1991231069.
1991231069 has 4 divisors, whose sum is 1991376060
The reverse of 1991231069 is 9601321991
Previous prime number is 15361
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 41
Digital Root 5
Name
one billion nine hundred ninety-one million two hundred thirty-one thousand sixty-nine
Scientific notation
1.991231069 × 10^9
Engineering notation
1.991231069 × 10^9
Prime Factorization
15361 × 129629
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1991231069
Product of the distinct prime numbers
The prime factorization of 1991231069 is 15361 × 129629.
Since it has a total of 2 prime factors.
9 , 5 , 44 , 19 , 371 , 9 , 1992 , 4582 , 86654 , 89989 , 150142 , 909990 , 655164 , 3252373 , 97458052 , 80652321 , 472507148 , 490009179 , 7965757500 , 2747151772
n×2
3982462138
n×3
5973693207
n×4
7964924276
n×5
9956155345
n÷2
995615534.5
n÷3
663743689.66667
n÷3
497807767.25
n÷5
398246213.8
n2
3965001170150882761
n3
7.8952335186258E+27
n4
1.5721234279298E+37
n5
3.1304610139966E+46
2 √n
44623.212221892
3 √n
1258.0769920686
4 √n
211.24207019884
5 √n
72.414299182401
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1991231068
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1991231069 can be divided by 4 positive divisors.
The sum of these divisors (counting 1991231069) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110101011111100011001011101
3
Ternary
12010202212000111212
4
Quaternary
1312223330121131
5
Quinary
13034223343234
6
Senary
525330554205
8
Octal
16653743135
10
Decimal
1991231069
12
Duodecimal
476a38965
16
Hexadecimal
76afc65d
20
Vigesimal
1b253hd9
36
Base36
wxizq5
md5
981587b483566b4c57233230d7ef2d79
sha1
753aca7e14e78b6834b0d1dc25352a9dd5c07c89
sha256
ce3d655844fe9274dcee4dc84cd37b62330e2b236b21aa0ba9ba3785b72fa71a
sha512
06e75c51dabe3d2838c53edf3f6199d990a09bf380dcf96cff91b0301d5aa64c2cbdbda55819390b37e62349ef30e9542709c9401032caab8af6522ac5c3753b
ripemd-160
5a3778d8e7ce0ae3a167e5bef850d5d275c9afe7
Diameter
3982462138
Circumference
12511273795.94
Area
1.2456418547621E+19
Volume
3.3071476827321E+28
Surface area
4.9825674190484E+19
Circumference
12511273795.94
Perimeter
7964924276
Area
3965001170150882761
Diagonal
2816025983.5985
Surface area
2.3790007020905E+19
Volume
7.8952335186258E+27
Space diagonal
3448913381.1177
Perimeter
5973693207
Area
1.7168958696928E+18
Altitude
1724456690.5588
Surface area
1.7168958696928E+18
Volume
9.3046219334527E+26
Height
938675327.86616