71391808 is an even 8-digits composite number following 71391807
and preceding 71391809 . In scientific notation, it is written as 7.1391808 × 10^7.
The sum of its digits is 37. It has a total of 7 prime factors and 14 positive divisors.
There are 35695872 positive integers (up to 71391808) that are relatively prime to 71391808.
71391808 has 14 divisors, whose sum is 141668246
The reverse of 71391808 is 80819317
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
seventy-one million three hundred ninety-one thousand eight hundred eight
Scientific notation
7.1391808 × 10^7
Engineering notation
7.1391808 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 1115497
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
2230994
Product of the distinct prime numbers
The prime factorization of 71391808 is 2 × 2 × 2 × 2 × 2 × 2 × 1115497.
Since it has a total of 7 prime factors.
8 , 6 , 88 , 72 , 638 , 269 , 3938 , 3736 , 39959 , 77771 , 818339 , 572130 , 1520800 , 3270997 , 62191759 , 39491269 , 694032937 , 463434467 , 6810308030 , 7118181905
n×2
142783616
n×3
214175424
n×4
285567232
n×5
356959040
n÷2
35695904
n÷3
23797269.333333
n÷3
17847952
n÷5
14278361.6
n2
5096790249508864
n3
3.6386907090921E+23
n4
2.5977270847489E+31
n5
1.8545643327079E+39
2 √n
8449.3673135922
3 √n
414.84207084071
4 √n
91.920440129452
5 √n
37.215998549711
1 , 2 , 4 , 8 , 16 , 32 , 64 , 1115497 , 2230994 , 4461988 , 8923976 , 17847952 , 35695904 , 71391808
14 divisors
τ
Total Divisors
14
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71391807
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.071428571428571
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
14
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71391808 can be divided by 14 positive divisors.
The sum of these divisors (counting 71391808) is 1, the average is 0.071428571428571.
Base
System
Value
2
Binary
100010000010101101001000000
3
Ternary
11222100002011001
4
Quaternary
10100111221000
5
Quinary
121234014213
6
Senary
11030101344
8
Octal
420255100
10
Decimal
71391808
12
Duodecimal
1baaa854
16
Hexadecimal
4415a40
20
Vigesimal
1263ja8
36
Base36
16i69s
md5
84538e783dca87d79e62bfa12220b08b
sha1
1329477f093aca8a7d9b67db525eae99265b83b9
sha256
c96d04b1dafff28a0b473e1dc51fc4417c416ef9f3c0c217a17384d08e8a1e82
sha512
00e12cc9d4751b75f56e7a2f5e8b8bb69efac6b321629892498dc8888ba9785f28d0366fdc9d7651e675499c6b197a412c6ba6d3c1476c3085c6718e484c9eef
ripemd-160
3b5aa82acdf798d47dd575d47bce0917174cb9ea
Diameter
142783616
Circumference
448567959.07859
Area
1.6012038804745E+16
Volume
1.5241712000492E+24
Surface area
6.4048155218981E+16
Circumference
448567959.07859
Perimeter
285567232
Area
5096790249508864
Diagonal
100963263.11594
Surface area
30580741497053184
Volume
3.6386907090921E+23
Space diagonal
123654238.7002
Perimeter
214175424
Area
2.2069749169178E+15
Altitude
61827119.350101
Surface area
2.2069749169178E+15
Volume
4.2882381250658E+22
Height
33654421.038645