71389809 is an odd 8-digits composite number following 71389808
and preceding 71389810 . In scientific notation, it is written as 7.1389809 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 47593188 positive integers (up to 71389809) that are relatively prime to 71389809.
71389809 has 4 divisors, whose sum is 74033904
The reverse of 71389809 is 90898317
Previous prime number is 27
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-one million three hundred eighty-nine thousand eight hundred nine
Scientific notation
7.1389809 × 10^7
Engineering notation
7.1389809 × 10^6
Prime Factorization
27 × 2644067
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71389809
Product of the distinct prime numbers
The prime factorization of 71389809 is 27 × 2644067.
Since it has a total of 2 prime factors.
10 , 1 , 52 , 70 , 175 , 75 , 55 , 730 , 70045 , 95276 , 248478 , 485195 , 6537679 , 8789450 , 48934414 , 14335237 , 947780758 , 741975794 , 7135446581 , 8278349611
n×2
142779618
n×3
214169427
n×4
285559236
n×5
356949045
n÷2
35694904.5
n÷3
23796603
n÷3
17847452.25
n÷5
14277961.8
n2
5096504829056481
n3
3.6383850631392E+23
n4
2.5974361472596E+31
n5
1.8543047044256E+39
2 √n
8449.2490198834
3 √n
414.83819888834
4 √n
91.919796670159
5 √n
37.215790134723
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
-71389808
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 71389809 can be divided by 4 positive divisors.
The sum of these divisors (counting 71389809) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010000010101001001110001
3
Ternary
11222022222102000
4
Quaternary
10100111021301
5
Quinary
121233433214
6
Senary
11030044213
8
Octal
420251161
10
Decimal
71389809
12
Duodecimal
1baa9669
16
Hexadecimal
4415271
20
Vigesimal
1263ea9
36
Base36
16i4q9
md5
658f0c4835a3ef8598a6fb2c1858b1ef
sha1
20d15db7bed8a08af625650dd8441a7deef059c1
sha256
77cd045ff914d3184cac74c79438daa2b86b03b8c9fb60e2a27d3b648ff3bece
sha512
79f71015d84b6b43c43432a9d52baa1771bf1491eac54209e46961a0d57ac225dacc595832decf094a003b056f755c0e26b61634c5c58a16c9ebb7dee8b5e700
ripemd-160
e743a351a986f00c3d3fd61faa0330638693adb8
Diameter
142779618
Circumference
448555398.99116
Area
1.6011142129949E+16
Volume
1.5240431713719E+24
Surface area
6.4044568519795E+16
Circumference
448555398.99116
Perimeter
285559236
Area
5096504829056481
Diagonal
100960436.10302
Surface area
30579028974338886
Volume
3.6383850631392E+23
Space diagonal
123650776.33064
Perimeter
214169427
Area
2.2068513262365E+15
Altitude
61825388.165319
Surface area
2.2068513262365E+15
Volume
4.287877917856E+22
Height
33653478.701008