71388905 is an odd 8-digits composite number following 71388904
and preceding 71388906 . In scientific notation, it is written as 7.1388905 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 48822912 positive integers (up to 71388905) that are relatively prime to 71388905.
71388905 has 8 divisors, whose sum is 73622880
The reverse of 71388905 is 50988317
Previous prime number is 4987
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
seventy-one million three hundred eighty-eight thousand nine hundred five
Scientific notation
7.1388905 × 10^7
Engineering notation
7.1388905 × 10^6
Prime Factorization
35 × 4987 × 409
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71388905
Product of the distinct prime numbers
The prime factorization of 71388905 is 35 × 4987 × 409.
Since it has a total of 3 prime factors.
2 , 5 , 41 , 72 , 73 , 29 , 8274 , 2390 , 6300 , 694 , 973245 , 187508 , 1063064 , 5990803 , 2035837 , 79499848 , 713558725 , 451126759 , 6791226850 , 8853119421
n×2
142777810
n×3
214166715
n×4
285555620
n×5
356944525
n÷2
35694452.5
n÷3
23796301.666667
n÷3
17847226.25
n÷5
14277781
n2
5096375757099025
n3
3.6382468476785E+23
n4
2.5973045857547E+31
n5
1.854187303285E+39
2 √n
8449.1955238354
3 √n
414.83644786664
4 √n
91.919505676627
5 √n
37.215695882489
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
-71388904
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 71388905 can be divided by 8 positive divisors.
The sum of these divisors (counting 71388905) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010000010100111011101001
3
Ternary
11222022221011112
4
Quaternary
10100110323221
5
Quinary
121233421110
6
Senary
11030040105
8
Octal
420247351
10
Decimal
71388905
12
Duodecimal
1baa9035
16
Hexadecimal
4414ee9
20
Vigesimal
1263c55
36
Base36
16i415
md5
0ee04429498b1041144872e1261fbbdf
sha1
a3f4a58e05603653c724e8ec635e4e00db7f0db5
sha256
16a1a841d10769c69f522d2482a9b098c9280f9c30a4715ec7dfc78db381b655
sha512
1cbbe594ba1ff59c889d82551face442f88993552e918f932aa29573c3544d86ae73d900a5a8d2fcbeafb868affce5999085f00b497bb8143cc06f62c4d8b82c
ripemd-160
7fe9310e12c2d7d9dc88ccc309766f0e0eb5ba3c
Diameter
142777810
Circumference
448549718.99164
Area
1.6010736638435E+16
Volume
1.523985275815E+24
Surface area
6.4042946553742E+16
Circumference
448549718.99164
Perimeter
285555620
Area
5096375757099025
Diagonal
100959157.65396
Surface area
30578254542594150
Volume
3.6382468476785E+23
Space diagonal
123649210.55671
Perimeter
214166715
Area
2.2067954364395E+15
Altitude
61824605.278354
Surface area
2.2067954364395E+15
Volume
4.2877150293734E+22
Height
33653052.551321