1991231068 is an even 10-digits composite number following 1991231067
and preceding 1991231069 . In scientific notation, it is written as 1.991231068 × 10^9.
The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors.
There are 981592640 positive integers (up to 1991231068) that are relatively prime to 1991231068.
1991231068 has 12 divisors, whose sum is 3533734512
The reverse of 1991231068 is 8601321991
Previous prime number is 71
Is Prime? no Number parity even Number length 10 Sum of Digits 40 Digital Root 4
Name
one billion nine hundred ninety-one million two hundred thirty-one thousand sixty-eight
Scientific notation
1.991231068 × 10^9
Engineering notation
1.991231068 × 10^9
Prime Factorization
2 × 2 × 71 × 7011377
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
995615534 Product of the distinct prime numbers
The prime factorization of 1991231068 is 2 × 2 × 71 × 7011377.
Since it has a total of 4 prime factors.
9 , 5 , 92 , 41 , 621 , 554 , 1159 , 8274 , 70708 , 35873 , 992239 , 834831 , 1431605 , 4325616 , 78419425 , 28043919 , 989071058 , 626290806 , 682425539 , 6610554586
n×2
3982462136
n×3
5973693204
n×4
7964924272
n×5
9956155340
n÷2
995615534
n÷3
663743689.33333
n÷3
497807767
n÷5
398246213.6
n2
3965001166168420624
n3
7.8952335067308E+27
n4
1.5721234247717E+37
n5
3.130461006136E+46
2 √n44623.212210687
3 √n1258.076991858
4 √n211.24207017232
5 √n72.414299175127
1 , 2 , 4 , 71 , 142 , 284 , 7011377 , 14022754 , 28045508 , 497807767 , 995615534 , 1991231068
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
-1991231067 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 1991231068 can be divided by 12 positive divisors.
The sum of these divisors (counting 1991231068) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110110101011111100011001011100
3
Ternary
12010202212000111211
4
Quaternary
1312223330121130
5
Quinary
13034223343233
6
Senary
525330554204
8
Octal
16653743134
10
Decimal
1991231068
12
Duodecimal
476a38964
16
Hexadecimal
76afc65c
20
Vigesimal
1b253hd8
36
Base36
wxizq4
md5
d213766ca62da81d129ad7e257ba1186
sha1
6bf51312d2f016bf84779eb5d697c08d4bbe9fad
sha256
83210225c273ed3e231fa938de61ac246bb1f26f938395bb6acf2aadf4d0068b
sha512
2dcdc7a3057aa23e06e6e83836afea32535064388a2be926812f192b2a25db878acb8b2cd44cf332114f5500af9b58f2582d8a3c886f4ae6e95dea1b03d10e8b
ripemd-160
4aa663893066938346de2a696b258a112f94fa69
Diameter
3982462136
Circumference
12511273789.657
Area
1.245641853511E+19
Volume
3.3071476777495E+28
Surface area
4.9825674140439E+19
Circumference
12511273789.657
Perimeter
7964924272
Area
3965001166168420624
Diagonal
2816025982.1843
Surface area
2.3790006997011E+19
Volume
7.8952335067308E+27
Space diagonal
3448913379.3856
Perimeter
5973693204
Area
1.7168958679684E+18
Altitude
1724456689.6928
Surface area
1.7168958679684E+18
Volume
9.3046219194343E+26
Height
938675327.39475