82801981 is an odd 8-digits composite number following 82801980
and preceding 82801982 . In scientific notation, it is written as 8.2801981 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 78365952 positive integers (up to 82801981) that are relatively prime to 82801981.
82801981 has 8 divisors, whose sum is 87246720
The reverse of 82801981 is 18910828
Previous prime number is 1583
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-two million eight hundred one thousand nine hundred eighty-one
Scientific notation
8.2801981 × 10^7
Engineering notation
8.2801981 × 10^6
Prime Factorization
19 × 1583 × 2753
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
82801981
Product of the distinct prime numbers
The prime factorization of 82801981 is 19 × 1583 × 2753.
Since it has a total of 3 prime factors.
5 , 3 , 80 , 17 , 311 , 755 , 7179 , 1793 , 68473 , 16825 , 138552 , 672384 , 154963 , 6101638 , 34235053 , 9989266 , 774986916 , 636891316 , 9712928578 , 7992591216
n×2
165603962
n×3
248405943
n×4
331207924
n×5
414009905
n÷2
41400990.5
n÷3
27600660.333333
n÷3
20700495.25
n÷5
16560396.2
n2
6856168057524361
n3
5.6770429723194E+23
n4
4.7007040433017E+31
n5
3.8922760688009E+39
2 √n
9099.5593849373
3 √n
435.85989417133
4 √n
95.391610663293
5 √n
38.336119085028
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
-82801980
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 82801981 can be divided by 8 positive divisors.
The sum of these divisors (counting 82801981) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111011110111010100111101
3
Ternary
12202210202222001
4
Quaternary
10323313110331
5
Quinary
132144130411
6
Senary
12114422301
8
Octal
473672475
10
Decimal
82801981
12
Duodecimal
23891991
16
Hexadecimal
4ef753d
20
Vigesimal
15ha4j1
36
Base36
1daqf1
md5
548f14e2ada88dab5066b48481168922
sha1
c0e9d78c227f809f6e3402199e89a10d4b9d68c8
sha256
dc137f74bc6f5dcbb9e730d9d0e5c16655b8c22ff80ee3af33a6822b922fa3d7
sha512
136598c70b2ffe2692d812e0d757dba9a2e571e58ffd917df6644cff5498b22895b283112fcb959c0425161eb220ec36fd52c492da04a03661c1eb948abe66ca
ripemd-160
0e58e3321397917cc7b30dd1634b8e34ae3bd0bd
Diameter
165603962
Circumference
520260190.42456
Area
2.1539287201296E+16
Volume
2.3779941994603E+24
Surface area
8.6157148805182E+16
Circumference
520260190.42456
Perimeter
331207924
Area
6856168057524361
Diagonal
117099684.52156
Surface area
41137008345146166
Volume
5.6770429723194E+23
Space diagonal
143417238.05935
Perimeter
248405943
Area
2.9688078552158E+15
Altitude
71708619.029676
Surface area
2.9688078552158E+15
Volume
6.6904593046908E+22
Height
39033228.173853