71388915 is an odd 8-digits composite number following 71388914
and preceding 71388916 . In scientific notation, it is written as 7.1388915 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 35145216 positive integers (up to 71388915) that are relatively prime to 71388915.
71388915 has 8 divisors, whose sum is 87863520
The reverse of 71388915 is 51988317
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
seventy-one million three hundred eighty-eight thousand nine hundred fifteen
Scientific notation
7.1388915 × 10^7
Engineering notation
7.1388915 × 10^6
Prime Factorization
39 × 5 × 366097
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
71388915
Product of the distinct prime numbers
The prime factorization of 71388915 is 39 × 5 × 366097.
Since it has a total of 3 prime factors.
5 , 6 , 62 , 71 , 40 , 420 , 4143 , 1613 , 45215 , 24693 , 221465 , 801575 , 667960 , 5627155 , 72456985 , 15787557 , 500075122 , 565813401 , 2191844811 , 5164094505
n×2
142777830
n×3
214166745
n×4
285555660
n×5
356944575
n÷2
35694457.5
n÷3
23796305
n÷3
17847228.75
n÷5
14277783
n2
5096377184877225
n3
3.6382483765914E+23
n4
2.5973060410537E+31
n5
1.8541886019377E+39
2 √n
8449.1961156077
3 √n
414.83646723643
4 √n
91.919508895597
5 √n
37.215696925108
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
-71388914
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 71388915 can be divided by 8 positive divisors.
The sum of these divisors (counting 71388915) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010000010100111011110011
3
Ternary
11222022221011220
4
Quaternary
10100110323303
5
Quinary
121233421130
6
Senary
11030040123
8
Octal
420247363
10
Decimal
71388915
12
Duodecimal
1baa9043
16
Hexadecimal
4414ef3
20
Vigesimal
1263c5f
36
Base36
16i41f
md5
f6233d75992a6e569c7bfd7e3f3cad7b
sha1
ac3d1c6fd14019fa93f5fa62b9af112ecb88171f
sha256
5538dea5b5dfc90bd72945b2e31ea24e97ca11baa2b5783c2c09eb9f54908766
sha512
6e7b39921c4a8b350b60daaf0f06771ea2542780746b4ec68d13084d3ce08ce3a12558767fde870030fa5e26781b54071f28686146187eb63e2dcfc37a3fd457
ripemd-160
06d9622a047de60ea008fa80174a3defd76db417
Diameter
142777830
Circumference
448549781.82349
Area
1.6010741123933E+16
Volume
1.5239859162446E+24
Surface area
6.4042964495732E+16
Circumference
448549781.82349
Perimeter
285555660
Area
5096377184877225
Diagonal
100959171.7961
Surface area
30578263109263350
Volume
3.6382483765914E+23
Space diagonal
123649227.87722
Perimeter
214166745
Area
2.2067960546855E+15
Altitude
61824613.938608
Surface area
2.2067960546855E+15
Volume
4.2877168312145E+22
Height
33653057.265367