71385145 is an odd 8-digits composite number following 71385144
and preceding 71385146 . In scientific notation, it is written as 7.1385145 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 52715136 positive integers (up to 71385145) that are relatively prime to 71385145.
71385145 has 4 divisors, whose sum is 72483444
The reverse of 71385145 is 54158317
Previous prime number is 65
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
seventy-one million three hundred eighty-five thousand one hundred forty-five
Scientific notation
7.1385145 × 10^7
Engineering notation
7.1385145 × 10^6
Prime Factorization
65 × 1098233
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71385145
Product of the distinct prime numbers
The prime factorization of 71385145 is 65 × 1098233.
Since it has a total of 2 prime factors.
3 , 1 , 28 , 14 , 831 , 863 , 9199 , 855 , 30281 , 94238 , 912418 , 521454 , 8917661 , 4474312 , 97788990 , 79734120 , 707818157 , 419235274 , 6748158480 , 5700632644
n×2
142770290
n×3
214155435
n×4
285540580
n×5
356925725
n÷2
35692572.5
n÷3
23795048.333333
n÷3
17846286.25
n÷5
14277029
n2
5095838926671025
n3
3.6376720067706E+23
n4
2.5967574366576E+31
n5
1.8536990614563E+39
2 √n
8448.9730145148
3 √n
414.82916469741
4 √n
91.918295319892
5 √n
37.215303849681
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
-71385144
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 71385145 can be divided by 4 positive divisors.
The sum of these divisors (counting 71385145) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010000010100000000111001
3
Ternary
11222022202000021
4
Quaternary
10100110000321
5
Quinary
121233311040
6
Senary
11030010441
8
Octal
420240071
10
Decimal
71385145
12
Duodecimal
1baa6a21
16
Hexadecimal
4414039
20
Vigesimal
12632h5
36
Base36
16i14p
md5
42ab88b7c97cd252800f6f5e43c04224
sha1
a92b970d649d7c48f30f3ee3248c9b6a5fd5a887
sha256
1260c38e02b296be2c547c007b802636c7105b15b8c658b776e83a32c8111ab5
sha512
69b0e29b9b371d1c92d1b526a616d8d09fce94f127d2bf989658e12be65d997830e3b8d1e82e528d97dcb81cc72ab905824f10f469dfec65e4e6917b208a9030
ripemd-160
6aa9d79dfe9a8f2c28dafce95eaa5b5eea73e0a8
Diameter
142770290
Circumference
448526094.21488
Area
1.6009050135907E+16
Volume
1.5237444870186E+24
Surface area
6.4036200543626E+16
Circumference
448526094.21488
Perimeter
285540580
Area
5095838926671025
Diagonal
100953840.21097
Surface area
30575033560026150
Volume
3.6376720067706E+23
Space diagonal
123642698.04567
Perimeter
214155435
Area
2.2065629820454E+15
Altitude
61821349.022836
Surface area
2.2065629820454E+15
Volume
4.2870375728666E+22
Height
33651280.070323