71661856 is an even 8-digits composite number following 71661855
and preceding 71661857 . In scientific notation, it is written as 7.1661856 × 10^7.
The sum of its digits is 40. It has a total of 7 prime factors and 24 positive divisors.
There are 30712128 positive integers (up to 71661856) that are relatively prime to 71661856.
71661856 has 24 divisors, whose sum is 161239680
The reverse of 71661856 is 65816617
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
seventy-one million six hundred sixty-one thousand eight hundred fifty-six
Scientific notation
7.1661856 × 10^7
Engineering notation
7.1661856 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 7 × 319919
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
4478866
Product of the distinct prime numbers
The prime factorization of 71661856 is 2 × 2 × 2 × 2 × 2 × 7 × 319919.
Since it has a total of 7 prime factors.
5 , 8 , 43 , 70 , 230 , 423 , 9479 , 7653 , 12833 , 89520 , 810526 , 941974 , 944251 , 3841565 , 63015592 , 73617985 , 522243669 , 604474291 , 3084871635 , 2848674072
n×2
143323712
n×3
214985568
n×4
286647424
n×5
358309280
n÷2
35830928
n÷3
23887285.333333
n÷3
17915464
n÷5
14332371.2
n2
5135421605364736
n3
3.6801384358294E+23
n4
2.6372555064847E+31
n5
1.8899062434091E+39
2 √n
8465.3325983094
3 √n
415.3644758552
4 √n
92.007242097073
5 √n
37.244110834272
1 , 2 , 4 , 7 , 8 , 14 , 16 , 28 , 32 , 56 , 112 , 224 , 319919 , 639838 , 1279676 , 2239433 , 2559352 , 4478866 , 5118704 , 8957732 , 10237408 , 17915464 , 35830928 , 71661856
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71661855
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71661856 can be divided by 24 positive divisors.
The sum of these divisors (counting 71661856) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100010001010111100100100000
3
Ternary
11222211210120211
4
Quaternary
10101113210200
5
Quinary
121321134411
6
Senary
11035543504
8
Octal
421274440
10
Decimal
71661856
12
Duodecimal
1bbbab94
16
Hexadecimal
4457920
20
Vigesimal
127hecg
36
Base36
16nyn4
md5
b4fb5bb4a9666f0076dc9527fd0342e4
sha1
76c98cf22dcc02d7b0c4132e847c462fe800d4f1
sha256
84dc9cab7fd4248ba6c276336228818f44312e26dd86ce40b41a91e222d7c26d
sha512
506c8c9dc497ea2a7124102b44071eb101ddd6e24f1cbda6952a2294c1b7b911754c5c1b4a79b95e26c24079a4e338979e01b7f5e41f4a50fbaa79673e592970
ripemd-160
8947de6380a563d57960ebe5ff281100298ff870
Diameter
143323712
Circumference
450264720.70442
Area
1.61334027885E+16
Volume
1.541532783226E+24
Surface area
6.4533611154001E+16
Circumference
450264720.70442
Perimeter
286647424
Area
5135421605364736
Diagonal
101345168.66003
Surface area
30812529632188416
Volume
3.6801384358294E+23
Space diagonal
124121975.55668
Perimeter
214985568
Area
2.2237027846947E+15
Altitude
62060987.778342
Surface area
2.2237027846947E+15
Volume
4.337084739467E+22
Height
33781722.886676