87681749 is an odd 8-digits composite number following 87681748
and preceding 87681750 . In scientific notation, it is written as 8.7681749 × 10^7.
The sum of its digits is 50. It has a total of 3 prime factors and 8 positive divisors.
There are 85155840 positive integers (up to 87681749) that are relatively prime to 87681749.
87681749 has 8 divisors, whose sum is 90216408
The reverse of 87681749 is 94718678
Previous prime number is 641
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighty-seven million six hundred eighty-one thousand seven hundred forty-nine
Scientific notation
8.7681749 × 10^7
Engineering notation
8.7681749 × 10^6
Prime Factorization
37 × 641 × 3697
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
87681749
Product of the distinct prime numbers
The prime factorization of 87681749 is 37 × 641 × 3697.
Since it has a total of 3 prime factors.
5 , 5 , 15 , 2 , 389 , 868 , 2363 , 7976 , 18357 , 37805 , 573099 , 454115 , 7995326 , 2412817 , 10420821 , 1639177 , 847909116 , 844020519 , 3605047909 , 4072630623
n×2
175363498
n×3
263045247
n×4
350726996
n×5
438408745
n÷2
43840874.5
n÷3
29227249.666667
n÷3
21920437.25
n÷5
17536349.8
n2
7688089107699001
n3
6.741050994309E+23
n4
5.910671412792E+31
n5
5.182580072379E+39
2 √n
9363.8533200814
3 √n
444.25917051006
4 √n
96.76700532765
5 √n
38.777681641353
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
-87681748
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 87681749 can be divided by 8 positive divisors.
The sum of these divisors (counting 87681749) is 1, the average is 0.125.
Base
System
Value
2
Binary
101001110011110101011010101
3
Ternary
20002222200202012
4
Quaternary
11032132223111
5
Quinary
134421303444
6
Senary
12411154005
8
Octal
516365325
10
Decimal
87681749
12
Duodecimal
25445905
16
Hexadecimal
539ead5
20
Vigesimal
1780479
36
Base36
1g7bo5
md5
7d9f6491734fb24d2b94f552557a2539
sha1
7a79018d4cac402d425421551c3eda71f881a9cd
sha256
d8987d1ff81d3d9a11fc7827562324e06cdda64ed091e5d4c05876e4041c233a
sha512
58bf7bcf34bab0a37ae0f21a5b54482c1ae42f239a3174b2936fdc4f839ed488ad9b9586b969d68b479a1b44b07843fa112705f8c6408c567db2cdfe71c3be2f
ripemd-160
66c3cccd3f09715c63b5ee12482a17393ca39a0e
Diameter
175363498
Circumference
550920677.02461
Area
2.4152844260891E+16
Volume
2.8236848374927E+24
Surface area
9.6611377043564E+16
Circumference
550920677.02461
Perimeter
350726996
Area
7688089107699001
Diagonal
124000718.60839
Surface area
46128534646194006
Volume
6.741050994309E+23
Space diagonal
151869244.1645
Perimeter
263045247
Area
3.3290402369129E+15
Altitude
75934622.082251
Surface area
3.3290402369129E+15
Volume
7.9444047840003E+22
Height
41333572.869465