87085985 is an odd 8-digits composite number following 87085984
and preceding 87085986 . In scientific notation, it is written as 8.7085985 × 10^7.
The sum of its digits is 50. It has a total of 5 prime factors and 24 positive divisors.
There are 53738496 positive integers (up to 87085985) that are relatively prime to 87085985.
87085985 has 24 divisors, whose sum is 122780736
The reverse of 87085985 is 58958078
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighty-seven million eighty-five thousand nine hundred eighty-five
Scientific notation
8.7085985 × 10^7
Engineering notation
8.7085985 × 10^6
Prime Factorization
3451 × 5 × 7 × 7 × 103
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
12440855
Product of the distinct prime numbers
The prime factorization of 87085985 is 3451 × 5 × 7 × 7 × 103.
Since it has a total of 5 prime factors.
9 , 6 , 16 , 55 , 988 , 114 , 6297 , 7371 , 38504 , 96600 , 101009 , 786799 , 3631507 , 8784412 , 58458316 , 43786959 , 317883254 , 504575046 , 9627057808 , 4603298267
n×2
174171970
n×3
261257955
n×4
348343940
n×5
435429925
n÷2
43542992.5
n÷3
29028661.666667
n÷3
21771496.25
n÷5
17417197
n2
7583968783420225
n3
6.604573917134E+23
n4
5.7516582507892E+31
n5
5.0088882415336E+39
2 √n
9331.9871945904
3 √n
443.25069250618
4 √n
96.602211126819
5 √n
38.724841927643
1 , 5 , 7 , 35 , 49 , 103 , 245 , 515 , 721 , 3451 , 3605 , 5047 , 17255 , 24157 , 25235 , 120785 , 169099 , 355453 , 845495 , 1777265 , 2488171 , 12440855 , 17417197 , 87085985
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87085984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87085985 can be divided by 24 positive divisors.
The sum of these divisors (counting 87085985) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
101001100001101001110100001
3
Ternary
20001212102111212
4
Quaternary
11030031032201
5
Quinary
134243222420
6
Senary
12350315505
8
Octal
514151641
10
Decimal
87085985
12
Duodecimal
251b8b95
16
Hexadecimal
530d3a1
20
Vigesimal
1745ej5
36
Base36
1fujz5
md5
53fe39a848054bc91456ed10ee708143
sha1
6c11653fecd5444525421d144b9cda7bce9d6388
sha256
04f45d822315f892248635bffbbcae74ff9eee7c619835e711d7469f669961ea
sha512
a13fed68f55e97094da6c35c851d239e5da075c629cfcd989def8433b1c5e1202164095a9b8cd211b07d844c31ebc6a6597188f3e5267f3757d69fdfe8a73d03
ripemd-160
9e8424933a4f151e5258d7bba81a8f0134f9870f
Diameter
174171970
Circumference
547177381.41326
Area
2.3825740615047E+16
Volume
2.7665174530879E+24
Surface area
9.5302962460189E+16
Circumference
547177381.41326
Perimeter
348343940
Area
7583968783420225
Diagonal
123158181.07962
Surface area
45503812700521350
Volume
6.604573917134E+23
Space diagonal
150837350.64718
Perimeter
261257955
Area
3.283954813975E+15
Altitude
75418675.323591
Surface area
3.283954813975E+15
Volume
7.7835650060888E+22
Height
41052727.02654