87085989 is an odd 8-digits composite number following 87085988
and preceding 87085990 . In scientific notation, it is written as 8.7085989 × 10^7.
The sum of its digits is 54. It has a total of 4 prime factors and 8 positive divisors.
There are 58057308 positive integers (up to 87085989) that are relatively prime to 87085989.
87085989 has 8 divisors, whose sum is 129016320
The reverse of 87085989 is 98958078
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 54
Digital Root 9
Name
eighty-seven million eighty-five thousand nine hundred eighty-nine
Scientific notation
8.7085989 × 10^7
Engineering notation
8.7085989 × 10^6
Prime Factorization
3 × 3 × 3 × 3225407
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
9676221
Product of the distinct prime numbers
The prime factorization of 87085989 is 3 × 3 × 3 × 3225407.
Since it has a total of 4 prime factors.
10 , 10 , 4 , 37 , 660 , 811 , 2716 , 8488 , 39236 , 8717 , 384018 , 401372 , 5845799 , 6343196 , 71963212 , 94550821 , 937622465 , 984578644 , 8755260853 , 3765128982
n×2
174171978
n×3
261257967
n×4
348343956
n×5
435429945
n÷2
43542994.5
n÷3
29028663
n÷3
21771497.25
n÷5
17417197.8
n2
7583969480108121
n3
6.6045748272103E+23
n4
5.7516593075211E+31
n5
5.0088893918653E+39
2 √n
9331.9874089071
3 √n
443.25069929259
4 √n
96.602212236093
5 √n
38.724842283382
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
-87085988
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 87085989 can be divided by 8 positive divisors.
The sum of these divisors (counting 87085989) is 1, the average is 0.125.
Base
System
Value
2
Binary
101001100001101001110100101
3
Ternary
20001212102112000
4
Quaternary
11030031032211
5
Quinary
134243222424
6
Senary
12350315513
8
Octal
514151645
10
Decimal
87085989
12
Duodecimal
251b8b99
16
Hexadecimal
530d3a5
20
Vigesimal
1745ej9
36
Base36
1fujz9
md5
23a384639f510ddb8179965d2f82c6b5
sha1
6a7e88dfd0101d8ff149736e54ab937d922af5b5
sha256
7d27628cdd384cf0ffce557c5772e337f9c22eaa20a366d8b245bd0b68bb0b98
sha512
f0cf7b39d42390268c4d8b50827fb57c9aaae8a125525b58774768432e719ad632c28cec5e5a171968b46ca65707101371d9e78a39b7c13450eda198f77236d4
ripemd-160
fa33b000d959cf4524450d61bf83fb8ee8482612
Diameter
174171978
Circumference
547177406.546
Area
2.3825742803757E+16
Volume
2.7665178342997E+24
Surface area
9.5302971215028E+16
Circumference
547177406.546
Perimeter
348343956
Area
7583969480108121
Diagonal
123158186.73647
Surface area
45503816880648726
Volume
6.6045748272103E+23
Space diagonal
150837357.57538
Perimeter
261257967
Area
3.2839551156497E+15
Altitude
75418678.787692
Surface area
3.2839551156497E+15
Volume
7.783566078624E+22
Height
41052728.912158