82747981 is an odd 8-digits composite number following 82747980
and preceding 82747982 . In scientific notation, it is written as 8.2747981 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 82331964 positive integers (up to 82747981) that are relatively prime to 82747981.
82747981 has 4 divisors, whose sum is 83164000
The reverse of 82747981 is 18974728
Previous prime number is 199
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
eighty-two million seven hundred forty-seven thousand nine hundred eighty-one
Scientific notation
8.2747981 × 10^7
Engineering notation
8.2747981 × 10^6
Prime Factorization
199 × 415819
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
82747981
Product of the distinct prime numbers
The prime factorization of 82747981 is 199 × 415819.
Since it has a total of 2 prime factors.
6 , 2 , 8 , 7 , 262 , 871 , 4141 , 7326 , 78018 , 98341 , 616803 , 572658 , 8550045 , 365673 , 48826352 , 23015651 , 321319748 , 967167951 , 1600994904 , 7229016865
n×2
165495962
n×3
248243943
n×4
330991924
n×5
413739905
n÷2
41373990.5
n÷3
27582660.333333
n÷3
20686995.25
n÷5
16549596.2
n2
6847228359576361
n3
5.6659432220089E+23
n4
4.6884536208187E+31
n5
3.8796007113489E+39
2 √n
9096.5917243768
3 √n
435.76512368255
4 √n
95.376054250408
5 √n
38.33111753641
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
-82747980
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 82747981 can be divided by 4 positive divisors.
The sum of these divisors (counting 82747981) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111011101010001001001101
3
Ternary
12202201000220001
4
Quaternary
10323222021031
5
Quinary
132140413411
6
Senary
12113324301
8
Octal
473521115
10
Decimal
82747981
12
Duodecimal
23866691
16
Hexadecimal
4eea24d
20
Vigesimal
15h39j1
36
Base36
1d9kr1
md5
06be92769b770696b71046f534cf6b75
sha1
093609d7498ae27dd8ab6f41dea52ad6b13a795b
sha256
b2bbb3a548e25881144348dbc59de5f63535a8eae842a50d4f3b9336fad20775
sha512
57b38f53e6a606bd62eda97c4aec728de6c6677f24ba9c38dd1822f898c8a874c92291eac0f40110457e5cde26e3aa12085b7be1f7621c5e21e1e30dc9f4c71f
ripemd-160
82f6011d668f1fd6ca21aff584d5e4af1bbb3ad8
Diameter
165495962
Circumference
519920898.41798
Area
2.1511202311897E+16
Volume
2.3733447469227E+24
Surface area
8.6044809247587E+16
Circumference
519920898.41798
Perimeter
330991924
Area
6847228359576361
Diagonal
117023316.98919
Surface area
41083370157458166
Volume
5.6659432220089E+23
Space diagonal
143323707.31574
Perimeter
248243943
Area
2.9649368524532E+15
Altitude
71661853.657872
Surface area
2.9649368524532E+15
Volume
6.6773781235007E+22
Height
39007772.32973