87687989 is an odd 8-digits composite number following 87687988
and preceding 87687990 . In scientific notation, it is written as 8.7687989 × 10^7.
The sum of its digits is 62. It has a total of 2 prime factors and 4 positive divisors.
There are 82529856 positive integers (up to 87687989) that are relatively prime to 87687989.
87687989 has 4 divisors, whose sum is 92846124
The reverse of 87687989 is 98978678
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 62
Digital Root 8
Name
eighty-seven million six hundred eighty-seven thousand nine hundred eighty-nine
Scientific notation
8.7687989 × 10^7
Engineering notation
8.7687989 × 10^6
Prime Factorization
17 × 5158117
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87687989
Product of the distinct prime numbers
The prime factorization of 87687989 is 17 × 5158117.
Since it has a total of 2 prime factors.
4 , 2 , 8 , 50 , 575 , 265 , 1994 , 2500 , 78975 , 63171 , 928892 , 100439 , 1021318 , 6555448 , 55662285 , 32633256 , 615392989 , 484777421 , 2516482461 , 8116648923
n×2
175375978
n×3
263063967
n×4
350751956
n×5
438439945
n÷2
43843994.5
n÷3
29229329.666667
n÷3
21921997.25
n÷5
17537597.8
n2
7689183414864121
n3
6.7424903070159E+23
n4
5.9123541587421E+31
n5
5.1844244643589E+39
2 √n
9364.1865103168
3 √n
444.26970904476
4 √n
96.768726923097
5 √n
38.778233559735
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
-87687988
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 87687989 can be divided by 4 positive divisors.
The sum of these divisors (counting 87687989) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001110100000001100110101
3
Ternary
20010000000022022
4
Quaternary
11032200030311
5
Quinary
134422003424
6
Senary
12411242525
8
Octal
516401465
10
Decimal
87687989
12
Duodecimal
25449445
16
Hexadecimal
53a0335
20
Vigesimal
1780jj9
36
Base36
1g7ghh
md5
bf1ef69ece0b84d7c0974f097fff05b5
sha1
e96ccee8de61aeb66e526d9757b588180c58a6c2
sha256
40adba197a324db3572dfc7c5da763ce502cf35bb5832eaa9956d31e42e8ddf7
sha512
e122cb6249feba95592bdc38b90ca0b4bf3128a6eeaa44f9ee94515fad39b81e05e453a9e78fd5953c49fe3081aa06e6e393067b66d7a024753062b88357fcfd
ripemd-160
cc4f4a32a4d8ffdb2533b9ae1f152a111c8c4fb9
Diameter
175375978
Circumference
550959884.10093
Area
2.4156282128242E+16
Volume
2.8242877353895E+24
Surface area
9.6625128512966E+16
Circumference
550959884.10093
Perimeter
350751956
Area
7689183414864121
Diagonal
124009543.30102
Surface area
46135100489184726
Volume
6.7424903070159E+23
Space diagonal
151880052.16154
Perimeter
263063967
Area
3.3295140858152E+15
Altitude
75940026.08077
Surface area
3.3295140858152E+15
Volume
7.9461010302925E+22
Height
41336514.433674