87081668 is an even 8-digits composite number following 87081667
and preceding 87081669 . In scientific notation, it is written as 8.7081668 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 6 positive divisors.
There are 43540832 positive integers (up to 87081668) that are relatively prime to 87081668.
87081668 has 6 divisors, whose sum is 152392926
The reverse of 87081668 is 86618078
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighty-seven million eighty-one thousand six hundred sixty-eight
Scientific notation
8.7081668 × 10^7
Engineering notation
8.7081668 × 10^6
Prime Factorization
2 × 2 × 21770417
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
43540834
Product of the distinct prime numbers
The prime factorization of 87081668 is 2 × 2 × 21770417.
Since it has a total of 3 prime factors.
2 , 4 , 62 , 63 , 918 , 162 , 3000 , 8076 , 38921 , 50666 , 164653 , 964208 , 4881837 , 6882512 , 49094100 , 43894407 , 468530695 , 475487960 , 9534033395 , 4413190587
n×2
174163336
n×3
261245004
n×4
348326672
n×5
435408340
n÷2
43540834
n÷3
29027222.666667
n÷3
21770417
n÷5
17416333.6
n2
7583216901662224
n3
6.6035917660254E+23
n4
5.7505178577656E+31
n5
5.0076468691801E+39
2 √n
9331.7558905064
3 √n
443.24336815558
4 √n
96.601013920695
5 √n
38.724457988809
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-87081667
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 87081668 can be divided by 6 positive divisors.
The sum of these divisors (counting 87081668) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
101001100001100001011000100
3
Ternary
20001212012120222
4
Quaternary
11030030023010
5
Quinary
134243103133
6
Senary
12350243512
8
Octal
514141304
10
Decimal
87081668
12
Duodecimal
251b6598
16
Hexadecimal
530c2c4
20
Vigesimal
1745438
36
Base36
1fugn8
md5
9a42751958afe253a2396ad15f4f171a
sha1
e7a87e12790bb0e7b306bf3dc410495e23ff3eb2
sha256
ae7bc38fb0da87ebe832c116ee24ac9311f0c905d66aea82c8207b3ec54dc9b3
sha512
0f1ea9d1560cff57bb88565832eb6250a5d4d917d7b21dfdd4600c4e89732593a647ed9d74e366b83c70887d8a4ab8d41059b8c42431047c6cd359c1d257357e
ripemd-160
207216405c3a9ddd42c483fa03854104fee3e415
Diameter
174163336
Circumference
547150256.90229
Area
2.382337850884E+16
Volume
2.7661060505935E+24
Surface area
9.529351403536E+16
Circumference
547150256.90229
Perimeter
348326672
Area
7583216901662224
Diagonal
123152075.91967
Surface area
45499301409973344
Volume
6.6035917660254E+23
Space diagonal
150829873.38384
Perimeter
261245004
Area
3.2836292396235E+15
Altitude
75414936.691922
Surface area
3.2836292396235E+15
Volume
7.782407529907E+22
Height
41050691.973224