87081955 is an odd 8-digits composite number following 87081954
and preceding 87081956 . In scientific notation, it is written as 8.7081955 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 69665560 positive integers (up to 87081955) that are relatively prime to 87081955.
87081955 has 4 divisors, whose sum is 104498352
The reverse of 87081955 is 55918078
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty-seven million eighty-one thousand nine hundred fifty-five
Scientific notation
8.7081955 × 10^7
Engineering notation
8.7081955 × 10^6
Prime Factorization
5 × 17416391
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87081955
Product of the distinct prime numbers
The prime factorization of 87081955 is 5 × 17416391.
Since it has a total of 2 prime factors.
9 , 2 , 98 , 43 , 181 , 131 , 8931 , 6723 , 2240 , 38889 , 287896 , 686674 , 9143423 , 9301966 , 18042700 , 47596482 , 43776792 , 507559424 , 6971077838 , 5405595152
n×2
174163910
n×3
261245865
n×4
348327820
n×5
435409775
n÷2
43540977.5
n÷3
29027318.333333
n÷3
21770488.75
n÷5
17416391
n2
7583266886622025
n3
6.6036570577381E+23
n4
5.7505936673738E+31
n5
5.0077293896553E+39
2 √n
9331.7712680927
3 √n
443.24385509583
4 √n
96.601093513959
5 √n
38.724483514055
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
-87081954
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 87081955 can be divided by 4 positive divisors.
The sum of these divisors (counting 87081955) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100001100001111100011
3
Ternary
20001212012222121
4
Quaternary
11030030033203
5
Quinary
134243110310
6
Senary
12350245111
8
Octal
514141743
10
Decimal
87081955
12
Duodecimal
251b6797
16
Hexadecimal
530c3e3
20
Vigesimal
17454hf
36
Base36
1fugv7
md5
6428472e4b138946201471894ffa203b
sha1
b72d8c7e53622644faf572503dd92228bd83da2a
sha256
7303749f4fdd79eaa5eb1a3d8ba0037795be1d12c46431c25e82da4a2dc872dd
sha512
ea34fb847c0c90dfb4e83a7a893c4afd1a467a8be20eb4a62b86a044aa4155929984ae11542717e9f1c268f53e498e90bf8cc6c405c69c609c5cea1879cd335b
ripemd-160
f7a88800d86ae61ad99d0d0bd83e8812e27c5e40
Diameter
174163910
Circumference
547152060.17647
Area
2.3823535541222E+16
Volume
2.7661333999222E+24
Surface area
9.529414216489E+16
Circumference
547152060.17647
Perimeter
348327820
Area
7583266886622025
Diagonal
123152481.79896
Surface area
45499601319732150
Volume
6.6036570577381E+23
Space diagonal
150830370.48243
Perimeter
261245865
Area
3.283650883746E+15
Altitude
75415185.241213
Surface area
3.283650883746E+15
Volume
7.7824844769283E+22
Height
41050827.266321