87085987 is an odd 8-digits composite number following 87085986
and preceding 87085988 . In scientific notation, it is written as 8.7085987 × 10^7.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 82502496 positive integers (up to 87085987) that are relatively prime to 87085987.
87085987 has 4 divisors, whose sum is 91669480
The reverse of 87085987 is 78958078
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
eighty-seven million eighty-five thousand nine hundred eighty-seven
Scientific notation
8.7085987 × 10^7
Engineering notation
8.7085987 × 10^6
Prime Factorization
19 × 4583473
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87085987
Product of the distinct prime numbers
The prime factorization of 87085987 is 19 × 4583473.
Since it has a total of 2 prime factors.
7 , 8 , 66 , 35 , 37 , 23 , 3008 , 5333 , 73276 , 38158 , 549848 , 113325 , 2415499 , 1969261 , 69285170 , 80005322 , 82343583 , 285607694 , 149594534 , 7616258499
n×2
174171974
n×3
261257961
n×4
348343948
n×5
435429935
n÷2
43542993.5
n÷3
29028662.333333
n÷3
21771496.75
n÷5
17417197.4
n2
7583969131764169
n3
6.6045743721722E+23
n4
5.7516587791552E+31
n5
5.0088888166994E+39
2 √n
9331.9873017488
3 √n
443.25069589939
4 √n
96.602211681456
5 √n
38.724842105513
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
-87085986
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 87085987 can be divided by 4 positive divisors.
The sum of these divisors (counting 87085987) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100001101001110100011
3
Ternary
20001212102111221
4
Quaternary
11030031032203
5
Quinary
134243222422
6
Senary
12350315511
8
Octal
514151643
10
Decimal
87085987
12
Duodecimal
251b8b97
16
Hexadecimal
530d3a3
20
Vigesimal
1745ej7
36
Base36
1fujz7
md5
52783e0df9651fcb4b8644257d3e288e
sha1
d6011045e6e8d20c9c2c6d6002509230326f93ef
sha256
138c4a9edbbe689fa08338426a21965d6e604899f061e15ca258e749aff554d9
sha512
a3a2c0d1e2549c3c9a4f79c941e5073600f395f4e433120538396d7efba42fb1ca41a5d6e873833b0306808a45faf934e83a2ecb866934632a98194bf9642124
ripemd-160
27c2f8639ea4dbfbe2a691fa11171ef73fb184e7
Diameter
174171974
Circumference
547177393.97963
Area
2.3825741709402E+16
Volume
2.7665176436938E+24
Surface area
9.5302966837608E+16
Circumference
547177393.97963
Perimeter
348343948
Area
7583969131764169
Diagonal
123158183.90805
Surface area
45503814790585014
Volume
6.6045743721722E+23
Space diagonal
150837354.11128
Perimeter
261257961
Area
3.2839549648124E+15
Altitude
75418677.055641
Surface area
3.2839549648124E+15
Volume
7.7835655423564E+22
Height
41052727.969349