71287890 is an even 8-digits composite number following 71287889
and preceding 71287891 . In scientific notation, it is written as 7.1287890 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 19010096 positive integers (up to 71287890) that are relatively prime to 71287890.
71287890 has 8 divisors, whose sum is 114060672
The reverse of 71287890 is 09878217
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 42
Digital Root 6
Name
seventy-one million two hundred eighty-seven thousand eight hundred ninety
Scientific notation
7.1287890 × 10^7
Engineering notation
7.1287890 × 10^6
Prime Factorization
2 × 15 × 2376263
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71287890
Product of the distinct prime numbers
The prime factorization of 71287890 is 2 × 15 × 2376263.
Since it has a total of 3 prime factors.
4 , 2 , 11 , 42 , 791 , 456 , 3042 , 4634 , 84165 , 64749 , 341637 , 79517 , 80098 , 6149338 , 21417721 , 85817464 , 760098813 , 339201504 , 1517267602 , 9254160763
n×2
142575780
n×3
213863670
n×4
285151560
n×5
356439450
n÷2
35643945
n÷3
23762630
n÷3
17821972.5
n÷5
14257578
n2
5081963260652100
n3
3.6228243790941E+23
n4
2.5826350582618E+31
n5
1.8411060394351E+39
2 √n
8443.2156196558
3 √n
414.64069156377
4 √n
91.886971980014
5 √n
37.205157905727
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
-71287889
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 71287890 can be divided by 8 positive divisors.
The sum of these divisors (counting 71287890) is 1, the average is 0.125.
Base
System
Value
2
Binary
100001111111100010001010010
3
Ternary
11222010210121020
4
Quaternary
10033330101102
5
Quinary
121222203030
6
Senary
11023540310
8
Octal
417742122
10
Decimal
71287890
12
Duodecimal
1ba5a696
16
Hexadecimal
43fc452
20
Vigesimal
125ajea
36
Base36
16fy36
md5
a73da176d8db6b68515cbe3fd5108a1d
sha1
e6e0d807e97861f10b13bbb06e758b069e980335
sha256
18ba6006fd0d3bc890135e5f3d64229d7b7faac7875abdcb5a7f04ccd74dbdbb
sha512
1a8ba2fe3f0965f451b0357da699233750cfdaf87e51de21ff7ad81323265d7494e49e218094e862e564444856dead15d65e0024a2f73875b253588f272c9616
ripemd-160
34fa429690e2e358b5ca361993db670dafa36b99
Diameter
142575780
Circumference
447915023.02783
Area
1.5965458445478E+16
Volume
1.5175251272811E+24
Surface area
6.3861833781911E+16
Circumference
447915023.02783
Perimeter
285151560
Area
5081963260652100
Diagonal
100816300.87096
Surface area
30491779563912600
Volume
3.6228243790941E+23
Space diagonal
123474247.44438
Perimeter
213863670
Area
2.200554642412E+15
Altitude
61737123.722191
Surface area
2.200554642412E+15
Volume
4.2695394758423E+22
Height
33605433.623654