87081387 is an odd 8-digits composite number following 87081386
and preceding 87081388 . In scientific notation, it is written as 8.7081387 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 54660960 positive integers (up to 87081387) that are relatively prime to 87081387.
87081387 has 8 divisors, whose sum is 116214336
The reverse of 87081387 is 78318078
Previous prime number is 1147
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-seven million eighty-one thousand three hundred eighty-seven
Scientific notation
8.7081387 × 10^7
Engineering notation
8.7081387 × 10^6
Prime Factorization
3 × 1147 × 25307
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
87081387
Product of the distinct prime numbers
The prime factorization of 87081387 is 3 × 1147 × 25307.
Since it has a total of 3 prime factors.
6 , 4 , 34 , 3 , 708 , 949 , 7468 , 1421 , 66984 , 39006 , 615315 , 977032 , 1246756 , 6049782 , 14070704 , 24730376 , 639141862 , 72923829 , 2299902554 , 3494853843
n×2
174162774
n×3
261244161
n×4
348325548
n×5
435406935
n÷2
43540693.5
n÷3
29027129
n÷3
21770346.75
n÷5
17416277.4
n2
7583167961843769
n3
6.6035278397132E+23
n4
5.7504436337534E+31
n5
5.0075660749256E+39
2 √n
9331.7408343781
3 √n
443.24289139423
4 √n
96.600935991211
5 √n
38.724432997127
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
-87081386
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 87081387 can be divided by 8 positive divisors.
The sum of these divisors (counting 87081387) is 1, the average is 0.125.
Base
System
Value
2
Binary
101001100001100000110101011
3
Ternary
20001212012012120
4
Quaternary
11030030012223
5
Quinary
134243101022
6
Senary
12350242323
8
Octal
514140653
10
Decimal
87081387
12
Duodecimal
251b63a3
16
Hexadecimal
530c1ab
20
Vigesimal
1745397
36
Base36
1fugff
md5
2c7fc5f35ad0d9272ba2c05a897ae986
sha1
127c457c50a787299d65e12dfe29f498ed744dd6
sha256
317efa6dfc9a458d313097a6087b10242997e82cc12dbbc99767f43736d941e9
sha512
2b064400b6f7d0b69f4be815582deb2e058b8f0cbc2781c3d22fd7fac057b9288a459c42163825e5b64b891a042208a6720205c4e52acab1942ef84ad7241a6a
ripemd-160
ae8cbddd14ab7cd3436ef90b9eb7f2991e32e2d5
Diameter
174162774
Circumference
547148491.32722
Area
2.3823224759866E+16
Volume
2.7660792732025E+24
Surface area
9.5292899039463E+16
Circumference
547148491.32722
Perimeter
348325548
Area
7583167961843769
Diagonal
123151678.52566
Surface area
45499007771062614
Volume
6.6035278397132E+23
Space diagonal
150829386.67757
Perimeter
261244161
Area
3.2836080480605E+15
Altitude
75414693.338784
Surface area
3.2836080480605E+15
Volume
7.7823321920256E+22
Height
41050559.508553