127980905 is an odd 9-digits composite number following 127980904
and preceding 127980906 . In scientific notation, it is written as 1.27980905 × 10^8.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 93899520 positive integers (up to 127980905) that are relatively prime to 127980905.
127980905 has 16 divisors, whose sum is 166457424
The reverse of 127980905 is 509089721
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 41
Digital Root 5
Name
one hundred twenty-seven million nine hundred eighty thousand nine hundred five
Scientific notation
1.27980905 × 10^8
Engineering notation
1.27980905 × 10^6
Prime Factorization
5 × 13 × 157 × 12541
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
127980905
Product of the distinct prime numbers
The prime factorization of 127980905 is 5 × 13 × 157 × 12541.
Since it has a total of 4 prime factors.
3 , 9 , 57 , 59 , 575 , 394 , 3080 , 137 , 11007 , 37104 , 753866 , 900039 , 8804349 , 5609738 , 63626430 , 84134578 , 20710753 , 268317389 , 8361229094 , 4849256683
n×2
255961810
n×3
383942715
n×4
511923620
n×5
639904525
n÷2
63990452.5
n÷3
42660301.666667
n÷3
31995226.25
n÷5
25596181
n2
16379112044619025
n3
2.0962135825667E+24
n4
2.6827531137018E+32
n5
3.4334117138313E+40
2 √n
11312.864579761
3 √n
503.94335809453
4 √n
106.36195080836
5 √n
41.824334123726
1 , 5 , 13 , 65 , 157 , 785 , 2041 , 10205 , 12541 , 62705 , 163033 , 815165 , 1968937 , 9844685 , 25596181 , 127980905
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-127980904
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 127980905 can be divided by 16 positive divisors.
The sum of these divisors (counting 127980905) is 1, the average is 0.0625.
Base
System
Value
2
Binary
111101000001101010101101001
3
Ternary
22220211002210112
4
Quaternary
13220031111221
5
Quinary
230230342110
6
Senary
20411024105
8
Octal
750152551
10
Decimal
127980905
12
Duodecimal
36a3b035
16
Hexadecimal
7a0d569
20
Vigesimal
1jjhc55
36
Base36
2472p5
md5
514f7becf3ae7d780dd55e2df72b54f4
sha1
ba478c28a6349a1f6501a765181b915886d2736e
sha256
2013c0f401e331141bcb3c2569a6362c34ab41cc0cda411feaeea21fb335026d
sha512
f65cc27664faa799d316fbb4807d9ff9171bac2858fcada3265557ac36b0aa4be481b4fccf7ae6a5448d9de0f7549239cf35d13856ba67634d593df1dc2ec859
ripemd-160
e0de19451e465cc7cb8f932fc934011e8e3e1d77
Diameter
255961810
Circumference
804127741.89555
Area
5.1456498071699E+16
Volume
8.7805989217958E+24
Surface area
2.058259922868E+17
Circumference
804127741.89555
Perimeter
511923620
Area
16379112044619025
Diagonal
180992331.57578
Surface area
98274672267714150
Volume
2.0962135825667E+24
Space diagonal
221669429.85865
Perimeter
383942715
Area
7.0923635610359E+15
Altitude
110834714.92932
Surface area
7.0923635610359E+15
Volume
2.4704113984138E+23
Height
60330777.191928