87081761 is an odd 8-digits composite number following 87081760
and preceding 87081762 . In scientific notation, it is written as 8.7081761 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 80383152 positive integers (up to 87081761) that are relatively prime to 87081761.
87081761 has 4 divisors, whose sum is 93780372
The reverse of 87081761 is 16718078
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-seven million eighty-one thousand seven hundred sixty-one
Scientific notation
8.7081761 × 10^7
Engineering notation
8.7081761 × 10^6
Prime Factorization
13 × 6698597
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87081761
Product of the distinct prime numbers
The prime factorization of 87081761 is 13 × 6698597.
Since it has a total of 2 prime factors.
7 , 8 , 21 , 72 , 306 , 791 , 3359 , 3276 , 4744 , 77420 , 11157 , 710338 , 2282282 , 9283657 , 68828533 , 40963209 , 448623994 , 960579107 , 9137121979 , 1890945892
n×2
174163522
n×3
261245283
n×4
348327044
n×5
435408805
n÷2
43540880.5
n÷3
29027253.666667
n÷3
21770440.25
n÷5
17416352.2
n2
7583233098861121
n3
6.6036129232231E+23
n4
5.7505424231663E+31
n5
5.0076736091453E+39
2 √n
9331.7608734901
3 √n
443.2435259447
4 √n
96.601039712262
5 √n
38.724466260064
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
-87081760
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 87081761 can be divided by 4 positive divisors.
The sum of these divisors (counting 87081761) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001100001100001100100001
3
Ternary
20001212012201102
4
Quaternary
11030030030201
5
Quinary
134243104021
6
Senary
12350244145
8
Octal
514141441
10
Decimal
87081761
12
Duodecimal
251b6655
16
Hexadecimal
530c321
20
Vigesimal
1745481
36
Base36
1fugpt
md5
6139e7421fa6c1d6bf42737ab765ec98
sha1
867e97c9416c04c67c714b98706ec86253519b20
sha256
d04170e651e9f54eb6b5b924ada2bf8b8c6e25e38b6f9ef8fb88054c00b3efd0
sha512
c4cd5b1f438ab9b1dcffee83be719b3439b859da52bb69b67d7aeaaef4b6a6917ccfe2ef1e4429258a49f7d8ca3d3fdb6253902e3b3711482341a81bd7e146cf
ripemd-160
43258c75c750b36886fca410873ad4ce77edb688
Diameter
174163522
Circumference
547150841.23852
Area
2.3823429393841E+16
Volume
2.7661149128998E+24
Surface area
9.5293717575364E+16
Circumference
547150841.23852
Perimeter
348327044
Area
7583233098861121
Diagonal
123152207.44153
Surface area
45499398593166726
Volume
6.6036129232231E+23
Space diagonal
150830034.46457
Perimeter
261245283
Area
3.2836362532164E+15
Altitude
75415017.232285
Surface area
3.2836362532164E+15
Volume
7.7824324639037E+22
Height
41050735.813844