71661811 is an odd 8-digits composite number following 71661810
and preceding 71661812 . In scientific notation, it is written as 7.1661811 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 66149352 positive integers (up to 71661811) that are relatively prime to 71661811.
71661811 has 4 divisors, whose sum is 77174272
The reverse of 71661811 is 11816617
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
seventy-one million six hundred sixty-one thousand eight hundred eleven
Scientific notation
7.1661811 × 10^7
Engineering notation
7.1661811 × 10^6
Prime Factorization
13 × 5512447
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71661811
Product of the distinct prime numbers
The prime factorization of 71661811 is 13 × 5512447.
Since it has a total of 2 prime factors.
5 , 10 , 4 , 22 , 568 , 761 , 2406 , 9186 , 14342 , 32659 , 790700 , 813038 , 6790728 , 9562694 , 16225238 , 8743435 , 441522827 , 755465656 , 3416157868 , 7290334276
n×2
143323622
n×3
214985433
n×4
286647244
n×5
358309055
n÷2
35830905.5
n÷3
23887270.333333
n÷3
17915452.75
n÷5
14332362.2
n2
5135415155799721
n3
3.6801315030146E+23
n4
2.6372488822417E+31
n5
1.8899003095917E+39
2 √n
8465.3299404099
3 √n
415.36438891259
4 √n
92.007227653103
5 √n
37.244106156789
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
-71661810
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 71661811 can be divided by 4 positive divisors.
The sum of these divisors (counting 71661811) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010001010111100011110011
3
Ternary
11222211210112011
4
Quaternary
10101113203303
5
Quinary
121321134221
6
Senary
11035543351
8
Octal
421274363
10
Decimal
71661811
12
Duodecimal
1bbbab57
16
Hexadecimal
44578f3
20
Vigesimal
127heab
36
Base36
16nylv
md5
d961fee537463843f3f497e11c72c9ac
sha1
20c9706c293dccc375cf02518dd00f24f21b5871
sha256
4db5ffe5d196a5b50aac41294a39e783152c6749007f48807ad3117aa399ef1b
sha512
efa13de0c4e4519b2122b4d7544b4f30640a283fe21d4922e18e250926883937cf0d378c28ccf9ba6d7d9e4c7cc09ce590adb34ca0b0fb48a1ea09e6bd0d658b
ripemd-160
0b64552328b286d72af413d2640c79ad8cd124c4
Diameter
143323622
Circumference
450264437.96108
Area
1.6133382526594E+16
Volume
1.5415298792153E+24
Surface area
6.4533530106376E+16
Circumference
450264437.96108
Perimeter
286647244
Area
5135415155799721
Diagonal
101345105.02042
Surface area
30812490934798326
Volume
3.6801315030146E+23
Space diagonal
124121897.6144
Perimeter
214985433
Area
2.2236999919511E+15
Altitude
62060948.807199
Surface area
2.2236999919511E+15
Volume
4.3370765690664E+22
Height
33781701.673472