71398985 is an odd 8-digits composite number following 71398984
and preceding 71398986 . In scientific notation, it is written as 7.1398985 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 48959280 positive integers (up to 71398985) that are relatively prime to 71398985.
71398985 has 4 divisors, whose sum is 73438992
The reverse of 71398985 is 58989317
Previous prime number is 35
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
seventy-one million three hundred ninety-eight thousand nine hundred eighty-five
Scientific notation
7.1398985 × 10^7
Engineering notation
7.1398985 × 10^6
Prime Factorization
35 × 2039971
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71398985
Product of the distinct prime numbers
The prime factorization of 71398985 is 35 × 2039971.
Since it has a total of 2 prime factors.
4 , 2 , 74 , 49 , 14 , 842 , 8496 , 8274 , 85258 , 81974 , 819665 , 782603 , 5486172 , 5165940 , 51391097 , 85877339 , 173734016 , 724990027 , 8172193007 , 3267130153
n×2
142797970
n×3
214196955
n×4
285595940
n×5
356994925
n÷2
35699492.5
n÷3
23799661.666667
n÷3
17849746.25
n÷5
14279797
n2
5097815059030225
n3
3.6397882093247E+23
n4
2.5987718376075E+31
n5
1.8554967145176E+39
2 √n
8449.7920092745
3 √n
414.85597169694
4 √n
91.922750226886
5 √n
37.216746782567
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
-71398984
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 71398985 can be divided by 4 positive divisors.
The sum of these divisors (counting 71398985) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010000010111011001001001
3
Ternary
11222100102222212
4
Quaternary
10100113121021
5
Quinary
121234231420
6
Senary
11030154505
8
Octal
420273111
10
Decimal
71398985
12
Duodecimal
1bab2a35
16
Hexadecimal
4417649
20
Vigesimal
1264h95
36
Base36
16ibt5
md5
74827e6f733bd932a7959cc487580712
sha1
7c16e328bb59ac8ae175a8831abdd955bf99cda5
sha256
87202121c4c5cc0a65684a91a5f8a67398c4b8bbfb5e65f3c89658c83b05cbfc
sha512
34b6283435bb1e72841b16a7f7268c63d50cb5ad7221bc2c7e9290aa6d8d82d47253da13657cbb9ce90a67629134cffca91f1f13f6b1cd5aaa2dac23a40bda8f
ripemd-160
3929dac1184694daf5257fe8e82ff8b2804dc7d0
Diameter
142797970
Circumference
448613053.49954
Area
1.6015258338809E+16
Volume
1.5246309198716E+24
Surface area
6.4061033355235E+16
Circumference
448613053.49954
Perimeter
285595940
Area
5097815059030225
Diagonal
100973412.92667
Surface area
30586890354181350
Volume
3.6397882093247E+23
Space diagonal
123666669.62885
Perimeter
214196955
Area
2.2074186724575E+15
Altitude
61833334.814424
Surface area
2.2074186724575E+15
Volume
4.2895315414939E+22
Height
33657804.308891