1991231044 is an even 10-digits composite number following 1991231043
and preceding 1991231045 . In scientific notation, it is written as 1.991231044 × 10^9.
The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors.
There are 905105000 positive integers (up to 1991231044) that are relatively prime to 1991231044.
1991231044 has 12 divisors, whose sum is 3801441168
The reverse of 1991231044 is 4401321991
Previous prime number is 11
Is Prime? no Number parity even Number length 10 Sum of Digits 34 Digital Root 7
Name
one billion nine hundred ninety-one million two hundred thirty-one thousand forty-four
Scientific notation
1.991231044 × 10^9
Engineering notation
1.991231044 × 10^9
Prime Factorization
2 × 2 × 11 × 45255251
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
995615522 Product of the distinct prime numbers
The prime factorization of 1991231044 is 2 × 2 × 11 × 45255251.
Since it has a total of 4 prime factors.
9 , 10 , 77 , 11 , 875 , 671 , 8058 , 6671 , 3440 , 94556 , 82704 , 609450 , 9980209 , 7773878 , 74078859 , 73420487 , 318940754 , 924071408 , 8579528367 , 3486795619
n×2
3982462088
n×3
5973693132
n×4
7964924176
n×5
9956155220
n÷2
995615522
n÷3
663743681.33333
n÷3
497807761
n÷5
398246208.8
n2
3965001070589329936
n3
7.8952332212507E+27
n4
1.5721233489775E+37
n5
3.1304608174812E+46
2 √n44623.211941769
3 √n1258.0769868035
4 √n211.2420695358
5 √n72.414299000568
1 , 2 , 4 , 11 , 22 , 44 , 45255251 , 90510502 , 181021004 , 497807761 , 995615522 , 1991231044
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
-1991231043 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 1991231044 can be divided by 12 positive divisors.
The sum of these divisors (counting 1991231044) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110110101011111100011001000100
3
Ternary
12010202212000110221
4
Quaternary
1312223330121010
5
Quinary
13034223343134
6
Senary
525330554124
8
Octal
16653743104
10
Decimal
1991231044
12
Duodecimal
476a38944
16
Hexadecimal
76afc644
20
Vigesimal
1b253hc4
36
Base36
wxizpg
md5
1706ddd9c03d8d49fdd8ca8cdf96a204
sha1
c7b673984f31e3325f71be6603cc13f51c883336
sha256
724778676b7d43d3255cca830d0100e83c2ee43210368f0ea7884b839387c00d
sha512
05ac646fa05c0198f3ddee6d0e2b652e2e68e20386599407f541942a46e6a9eb1d941292120bd945f32fd7c697aa64d065a0bbb9419e8cf0e1f6c1fb187e648d
ripemd-160
9e33d4ae74d289e73570edfbde3da1e2fe2b1107
Diameter
3982462088
Circumference
12511273638.861
Area
1.2456418234839E+19
Volume
3.3071475581679E+28
Surface area
4.9825672939356E+19
Circumference
12511273638.861
Perimeter
7964924176
Area
3965001070589329936
Diagonal
2816025948.2431
Surface area
2.3790006423536E+19
Volume
7.8952332212507E+27
Space diagonal
3448913337.8164
Perimeter
5973693132
Area
1.7168958265814E+18
Altitude
1724456668.9082
Surface area
1.7168958265814E+18
Volume
9.3046215829928E+26
Height
938675316.08105