1991231076 is an even 10-digits composite number following 1991231075
and preceding 1991231077 . In scientific notation, it is written as 1.991231076 × 10^9.
The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors.
There are 663743688 positive integers (up to 1991231076) that are relatively prime to 1991231076.
1991231076 has 12 divisors, whose sum is 4646205872
The reverse of 1991231076 is 6701321991
Previous prime number is 3
Is Prime? no Number parity even Number length 10 Sum of Digits 39 Digital Root 3
Name
one billion nine hundred ninety-one million two hundred thirty-one thousand seventy-six
Scientific notation
1.991231076 × 10^9
Engineering notation
1.991231076 × 10^9
Prime Factorization
2 × 2 × 3 × 165935923
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
995615538 Product of the distinct prime numbers
The prime factorization of 1991231076 is 2 × 2 × 3 × 165935923.
Since it has a total of 4 prime factors.
4 , 4 , 64 , 99 , 14 , 217 , 7900 , 851 , 66665 , 5705 , 990802 , 13452 , 6915611 , 5547428 , 20732474 , 24484550 , 33199987 , 610593286 , 773938477 , 6264556726
n×2
3982462152
n×3
5973693228
n×4
7964924304
n×5
9956155380
n÷2
995615538
n÷3
663743692
n÷3
497807769
n÷5
398246215.2
n2
3965001198028117776
n3
7.8952336018908E+27
n4
1.5721234500364E+37
n5
3.1304610690209E+46
2 √n44623.212300326
3 √n1258.0769935428
4 √n211.24207038449
5 √n72.414299233314
1 , 2 , 3 , 4 , 6 , 12 , 165935923 , 331871846 , 497807769 , 663743692 , 995615538 , 1991231076
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
-1991231075 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 1991231076 can be divided by 12 positive divisors.
The sum of these divisors (counting 1991231076) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110110101011111100011001100100
3
Ternary
12010202212000112010
4
Quaternary
1312223330121210
5
Quinary
13034223343301
6
Senary
525330554220
8
Octal
16653743144
10
Decimal
1991231076
12
Duodecimal
476a38970
16
Hexadecimal
76afc664
20
Vigesimal
1b253hdg
36
Base36
wxizqc
md5
1d841244e215fe1791fe99712230eed4
sha1
3a6b4a549c5ad178079a5c916005d7fa0d21a649
sha256
a3da2d22b022329e9792842afd671269d818a0f8a059465a62add14680aebb29
sha512
8fba3b0c160a0f18d7dee29451bdafd1c43620f8007783361ad5d2ea8fcb9a6cfd9890851f2a4467d9911ce7c5435bbd51643aa270cecaf5a0d28300b8cee78e
ripemd-160
4ec9bb631ac674739e57bdfd3a9adb04c78b8976
Diameter
3982462152
Circumference
12511273839.923
Area
1.24564186352E+19
Volume
3.3071477176101E+28
Surface area
4.9825674540799E+19
Circumference
12511273839.923
Perimeter
7964924304
Area
3965001198028117776
Diagonal
2816025993.498
Surface area
2.3790007188169E+19
Volume
7.8952336018908E+27
Space diagonal
3448913393.242
Perimeter
5973693228
Area
1.716895881764E+18
Altitude
1724456696.621
Surface area
1.716895881764E+18
Volume
9.3046220315815E+26
Height
938675331.16599