87128568 is an even 8-digits composite number following 87128567
and preceding 87128569 . In scientific notation, it is written as 8.7128568 × 10^7.
The sum of its digits is 45. It has a total of 6 prime factors and 32 positive divisors.
There are 28882656 positive integers (up to 87128568) that are relatively prime to 87128568.
87128568 has 32 divisors, whose sum is 170352000
The reverse of 87128568 is 86582178
Previous prime number is 199
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty-seven million one hundred twenty-eight thousand five hundred sixty-eight
Scientific notation
8.7128568 × 10^7
Engineering notation
8.7128568 × 10^6
Prime Factorization
2 × 2 × 2 × 27 × 199 × 2027
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
21782142
Product of the distinct prime numbers
The prime factorization of 87128568 is 2 × 2 × 2 × 27 × 199 × 2027.
Since it has a total of 6 prime factors.
3 , 6 , 8 , 70 , 566 , 962 , 5060 , 7536 , 94265 , 27918 , 683079 , 608810 , 1530522 , 9413507 , 59103653 , 11549235 , 220190543 , 617148370 , 7296874273 , 1271376806
n×2
174257136
n×3
261385704
n×4
348514272
n×5
435642840
n÷2
43564284
n÷3
29042856
n÷3
21782142
n÷5
17425713.6
n2
7591387361730624
n3
6.6142670996089E+23
n4
5.7629162075843E+31
n5
5.0211463667081E+39
2 √n
9334.2684769617
3 √n
443.32292712429
4 √n
96.614018014787
5 √n
38.728628294659
1 , 2 , 4 , 8 , 27 , 54 , 108 , 199 , 216 , 398 , 796 , 1592 , 2027 , 4054 , 5373 , 8108 , 10746 , 16216 , 21492 , 42984 , 54729 , 109458 , 218916 , 403373 , 437832 , 806746 , 1613492 , 3226984 , 10891071 , 21782142 , 43564284 , 87128568
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87128567
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87128568 can be divided by 32 positive divisors.
The sum of these divisors (counting 87128568) is 1, the average is 0.03125.
Base
System
Value
2
Binary
101001100010111100111111000
3
Ternary
20001221120221000
4
Quaternary
11030113213320
5
Quinary
134301103233
6
Senary
12351245000
8
Octal
514274770
10
Decimal
87128568
12
Duodecimal
25219760
16
Hexadecimal
53179f8
20
Vigesimal
174b188
36
Base36
1fvgu0
md5
80f05ed5101a8c5d0d8aa800a7eb20e3
sha1
e1e8cf226f0d9095771bf3c59eca7eab3c0b4a2f
sha256
a54baaeaa78fa086730760449d77465f7650ca4cba5a530142e2737ce584c265
sha512
3919747cda4717787af6d19c2bd0d210d8cba1d7701fc02379f5e81ffb7c19cf32c6ad7b984977566db1fb49fc8ba00779ff22f28ca32577769f648369e5fa52
ripemd-160
e452552506756d55a4f4a60eae747b2bd2d7bf58
Diameter
174257136
Circumference
547444938.2932
Area
2.3849046766167E+16
Volume
2.7705777238683E+24
Surface area
9.5396187064669E+16
Circumference
547444938.2932
Perimeter
348514272
Area
7591387361730624
Diagonal
123218402.53575
Surface area
45548324170383744
Volume
6.6142670996089E+23
Space diagonal
150911106.56672
Perimeter
261385704
Area
3.2871671526134E+15
Altitude
75455553.28336
Surface area
3.2871671526134E+15
Volume
7.7949885311875E+22
Height
41072800.845249