87661906 is an even 8-digits composite number following 87661905
and preceding 87661907 . In scientific notation, it is written as 8.7661906 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 43830952 positive integers (up to 87661906) that are relatively prime to 87661906.
87661906 has 4 divisors, whose sum is 131492862
The reverse of 87661906 is 60916678
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
eighty-seven million six hundred sixty-one thousand nine hundred six
Scientific notation
8.7661906 × 10^7
Engineering notation
8.7661906 × 10^6
Prime Factorization
2 × 43830953
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
87661906
Product of the distinct prime numbers
The prime factorization of 87661906 is 2 × 43830953.
Since it has a total of 2 prime factors.
7 , 1 , 33 , 58 , 657 , 655 , 5364 , 2594 , 84676 , 29572 , 192423 , 343966 , 2960753 , 89843 , 94718891 , 68569560 , 946120328 , 504936791 , 7618004914 , 379347473
n×2
175323812
n×3
262985718
n×4
350647624
n×5
438309530
n÷2
43830953
n÷3
29220635.333333
n÷3
21915476.5
n÷5
17532381.2
n2
7684609763552836
n3
6.7364753873925E+23
n4
5.9053227218092E+31
n5
5.176718453389E+39
2 √n
9362.7937070086
3 √n
444.22565498411
4 √n
96.761530098529
5 √n
38.775926349723
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
-87661905
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 87661906 can be divided by 4 positive divisors.
The sum of these divisors (counting 87661906) is 1, the average is 0.25.
Base
System
Value
2
Binary
101001110011001110101010010
3
Ternary
20002221200112021
4
Quaternary
11032121311102
5
Quinary
134420140111
6
Senary
12410522054
8
Octal
516316522
10
Decimal
87661906
12
Duodecimal
2543632a
16
Hexadecimal
5399d52
20
Vigesimal
177hef6
36
Base36
1g6wcy
md5
253d522ba6c9b448baa58c35439c1d8a
sha1
7e8138d8286298382343c56b53a77454d594bf4f
sha256
0c5b8070b754f3926e0205d82716ba9f8b92c0a107da5033c7f99fb3cd7e204c
sha512
242df23b297091622ac6d4e0c24bb2b831f4b1f48c4e57a3473facf3f514d17537459d03ec807cf0f03c025c94778146ada42ddd55bd327d020ed9b13912aff7
ripemd-160
9cc148b4a08ccdd295bd3691f014c8d60dd79640
Diameter
175323812
Circumference
550795999.77856
Area
2.4141913578882E+16
Volume
2.8217682117494E+24
Surface area
9.6567654315528E+16
Circumference
550795999.77856
Perimeter
350647624
Area
7684609763552836
Diagonal
123972656.36868
Surface area
46107658581317016
Volume
6.7364753873925E+23
Space diagonal
151834875.08033
Perimeter
262985718
Area
3.3275336367033E+15
Altitude
75917437.540164
Surface area
3.3275336367033E+15
Volume
7.9390123795359E+22
Height
41324218.789558