1991231043 is an odd 10-digits composite number following 1991231042
and preceding 1991231044 . In scientific notation, it is written as 1.991231043 × 10^9.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 1326850728 positive integers (up to 1991231043) that are relatively prime to 1991231043.
1991231043 has 8 divisors, whose sum is 2656248000
The reverse of 1991231043 is 3401321991
Previous prime number is 2099
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 33
Digital Root 6
Name
one billion nine hundred ninety-one million two hundred thirty-one thousand forty-three
Scientific notation
1.991231043 × 10^9
Engineering notation
1.991231043 × 10^9
Prime Factorization
3 × 2099 × 316219
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1991231043
Product of the distinct prime numbers
The prime factorization of 1991231043 is 3 × 2099 × 316219.
Since it has a total of 3 prime factors.
8 , 9 , 23 , 47 , 99 , 556 , 72 , 8326 , 49127 , 58927 , 762863 , 697599 , 4268655 , 8542760 , 76761884 , 98223842 , 201868652 , 102967960 , 7708811816 , 5702314950
n×2
3982462086
n×3
5973693129
n×4
7964924172
n×5
9956155215
n÷2
995615521.5
n÷3
663743681
n÷3
497807760.75
n÷5
398246208.6
n2
3965001066606867849
n3
7.8952332093557E+27
n4
1.5721233458194E+37
n5
3.1304608096205E+46
2 √n
44623.211930564
3 √n
1258.0769865929
4 √n
211.24206950928
5 √n
72.414298993294
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1991231042
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1991231043 can be divided by 8 positive divisors.
The sum of these divisors (counting 1991231043) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110101011111100011001000011
3
Ternary
12010202212000110220
4
Quaternary
1312223330121003
5
Quinary
13034223343133
6
Senary
525330554123
8
Octal
16653743103
10
Decimal
1991231043
12
Duodecimal
476a38943
16
Hexadecimal
76afc643
20
Vigesimal
1b253hc3
36
Base36
wxizpf
md5
141eea6221f36f2cc18ea41d12a0910a
sha1
6418fd3244b29080c5a6e939952dea0847065026
sha256
e7ace9ecd8ca7db3435eb3c7a525fbade6c5a52ed403871954358ef98b5439af
sha512
92bf4170737247884cfdaec882df01ae60f76f1090865acecb835e93e95643326fc69d8fee485175c708e9b88aec0b169e377c2ecac6b4f69966fe66e09e0087
ripemd-160
69fcd92d6a67ae019c67fc28e36a729edbf71ffb
Diameter
3982462086
Circumference
12511273632.577
Area
1.2456418222328E+19
Volume
3.3071475531853E+28
Surface area
4.9825672889311E+19
Circumference
12511273632.577
Perimeter
7964924172
Area
3965001066606867849
Diagonal
2816025946.8289
Surface area
2.3790006399641E+19
Volume
7.8952332093557E+27
Space diagonal
3448913336.0844
Perimeter
5973693129
Area
1.716895824857E+18
Altitude
1724456668.0422
Surface area
1.716895824857E+18
Volume
9.3046215689744E+26
Height
938675315.60964