1981305005 is an odd 10-digits composite number following 1981305004
and preceding 1981305006 . In scientific notation, it is written as 1.981305005 × 10^9.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 1585044000 positive integers (up to 1981305005) that are relatively prime to 1981305005.
1981305005 has 4 divisors, whose sum is 2377566012
The reverse of 1981305005 is 5005031891
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 32
Digital Root 5
Name
one billion nine hundred eighty-one million three hundred five thousand five
Scientific notation
1.981305005 × 10^9
Engineering notation
1.981305005 × 10^9
Prime Factorization
5 × 396261001
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1981305005
Product of the distinct prime numbers
The prime factorization of 1981305005 is 5 × 396261001.
Since it has a total of 2 prime factors.
8 , 1 , 90 , 93 , 462 , 154 , 9265 , 4207 , 14790 , 79666 , 533641 , 795197 , 9547640 , 976214 , 2010088 , 3594238 , 8007207 , 492289265 , 6319343292 , 8446196993
n×2
3962610010
n×3
5943915015
n×4
7925220020
n×5
9906525025
n÷2
990652502.5
n÷3
660435001.66667
n÷3
495326251.25
n÷5
396261001
n2
3925569522838050025
n3
7.7777505430745E+27
n4
1.5410096078635E+37
n5
3.053210048813E+46
2 √n
44511.852410341
3 √n
1255.9830511882
4 √n
210.97832213368
5 √n
72.341959360654
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
-1981305004
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 1981305005 can be divided by 4 positive divisors.
The sum of these divisors (counting 1981305005) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110000110000101000010101101
3
Ternary
12010002011201111212
4
Quaternary
1312012011002231
5
Quinary
13024203230010
6
Senary
524334124205
8
Octal
16606050255
10
Decimal
1981305005
12
Duodecimal
473650665
16
Hexadecimal
761850ad
20
Vigesimal
1aj332a5
36
Base36
wrm8q5
md5
ef7c5c8707ebcb6f8db50f5f18a112d6
sha1
1fb783a78f0c6cf259a2675762ba76493a8f60aa
sha256
83b6b64f99e6a4908a89ee8057454e2d3dc1c7b762a98f1d40851cfb91773cf8
sha512
95f65e17adcaf964a8146a2e76519b31485560e101febcfa973dc98931fc12823d031fa6af702331acd7311c46a19644355e910d1ec9eddc6a61be7790abed09
ripemd-160
8c25385afff7047c620340056e491413599ab3ea
Diameter
3962610010
Circumference
12448906496.457
Area
1.2332540374104E+19
Volume
3.2579365290102E+28
Surface area
4.9330161496416E+19
Circumference
12448906496.457
Perimeter
7925220020
Area
3925569522838050025
Diagonal
2801988409.2687
Surface area
2.3553417137028E+19
Volume
7.7777505430745E+27
Space diagonal
3431720933.9505
Perimeter
5943915015
Area
1.6998214655499E+18
Altitude
1715860466.9753
Surface area
1.6998214655499E+18
Volume
9.1661669189755E+26
Height
933996136.4229