87082981 is an odd 8-digits composite number following 87082980
and preceding 87082982 . In scientific notation, it is written as 8.7082981 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 87050700 positive integers (up to 87082981) that are relatively prime to 87082981.
87082981 has 4 divisors, whose sum is 87115264
The reverse of 87082981 is 18928078
Previous prime number is 2971
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty-seven million eighty-two thousand nine hundred eighty-one
Scientific notation
8.7082981 × 10^7
Engineering notation
8.7082981 × 10^6
Prime Factorization
2971 × 29311
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87082981
Product of the distinct prime numbers
The prime factorization of 87082981 is 2971 × 29311.
Since it has a total of 2 prime factors.
8 , 9 , 19 , 90 , 360 , 454 , 4332 , 6404 , 59188 , 85639 , 658226 , 992359 , 2356407 , 1965029 , 55083682 , 51251887 , 435871162 , 891540646 , 6306862445 , 169089494
n×2
174165962
n×3
261248943
n×4
348331924
n×5
435414905
n÷2
43541490.5
n÷3
29027660.333333
n÷3
21770745.25
n÷5
17416596.2
n2
7583445579846361
n3
6.6038904734429E+23
n4
5.7508646862491E+31
n5
5.008024402062E+39
2 √n
9331.8262414171
3 √n
443.24559585605
4 √n
96.601378051336
5 √n
38.724574764034
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
-87082980
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 87082981 can be divided by 4 positive divisors.
The sum of these divisors (counting 87082981) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100001100011111100101
3
Ternary
20001212021101121
4
Quaternary
11030030133211
5
Quinary
134243123411
6
Senary
12350253541
8
Octal
514143745
10
Decimal
87082981
12
Duodecimal
251b72b1
16
Hexadecimal
530c7e5
20
Vigesimal
1745791
36
Base36
1fuhnp
md5
0f76a919f6cd57e18d5baa6116f161a7
sha1
59de6e7cf832caefb5144cd7d967796759eee7a0
sha256
068c9db8c6907378b4a96cd071fa9014d70813d59a1c958bb8e9d2454a79ae1d
sha512
6dbcf8e5f456715dfb58c926c10823fc5f940a11f977d88dd7f3154120d3d9b7a0a6d833089ff4e1214b24da28dbe64525ce4795e87953e735e8e7b13a518dea
ripemd-160
922e0ac2f1607419b16eaeea8c2ed502b8f25f3e
Diameter
174165962
Circumference
547158506.7246
Area
2.3824096922543E+16
Volume
2.766231172864E+24
Surface area
9.5296387690173E+16
Circumference
547158506.7246
Perimeter
348331924
Area
7583445579846361
Diagonal
123153932.78208
Surface area
45500673479078166
Volume
6.6038904734429E+23
Space diagonal
150832147.56656
Perimeter
261248943
Area
3.2837282601819E+15
Altitude
75416073.783278
Surface area
3.2837282601819E+15
Volume
7.7827595599746E+22
Height
41051310.92736