71661531 is an odd 8-digits composite number following 71661530
and preceding 71661532 . In scientific notation, it is written as 7.1661531 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 47774352 positive integers (up to 71661531) that are relatively prime to 71661531.
71661531 has 4 divisors, whose sum is 95548712
The reverse of 71661531 is 13516617
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
seventy-one million six hundred sixty-one thousand five hundred thirty-one
Scientific notation
7.1661531 × 10^7
Engineering notation
7.1661531 × 10^6
Prime Factorization
3 × 23887177
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
71661531
Product of the distinct prime numbers
The prime factorization of 71661531 is 3 × 23887177.
Since it has a total of 2 prime factors.
9 , 5 , 90 , 23 , 4 , 271 , 3085 , 9709 , 79670 , 54954 , 966906 , 916025 , 4327982 , 4780448 , 52284806 , 13122416 , 475614073 , 571936039 , 7003784029 , 3580345063
n×2
143323062
n×3
214984593
n×4
286646124
n×5
358307655
n÷2
35830765.5
n÷3
23887177
n÷3
17915382.75
n÷5
14332306.2
n2
5135375025263961
n3
3.6800883656958E+23
n4
2.6372076650105E+31
n5
1.8898633883959E+39
2 √n
8465.3134023496
3 √n
415.36384793557
4 √n
92.007137779357
5 √n
37.2440770524
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
-71661530
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 71661531 can be divided by 4 positive divisors.
The sum of these divisors (counting 71661531) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010001010111011111011011
3
Ternary
11222211210010210
4
Quaternary
10101113133123
5
Quinary
121321132111
6
Senary
11035542203
8
Octal
421273733
10
Decimal
71661531
12
Duodecimal
1bbba963
16
Hexadecimal
44577db
20
Vigesimal
127hdgb
36
Base36
16nye3
md5
538a0496a9957ecf6e2cd9847ec9c7ff
sha1
87eecc8dd2cc25ab764fff38f8e8c9119dcf8c9e
sha256
61974ddfdfe1d8bef97f9953095b3ef8793afa558be011216bd5ae046d04340b
sha512
9afb087fa630da9c8a243df4e73081b0f5f5d39af562616136ec61d4b5288b53dbb1be652f617ecb1ed0a56d88d8da61e872ca09a8331947a8057ece9fb35e38
ripemd-160
a6dea42977bff55dd651fbad9bcf8cab33bd997f
Diameter
143323062
Circumference
450262678.66919
Area
1.6133256452798E+16
Volume
1.5415118098975E+24
Surface area
6.4533025811191E+16
Circumference
450262678.66919
Perimeter
286646124
Area
5135375025263961
Diagonal
101344709.04062
Surface area
30812250151583766
Volume
3.6800883656958E+23
Space diagonal
124121412.64017
Perimeter
214984593
Area
2.2236826149194E+15
Altitude
62060706.320086
Surface area
2.2236826149194E+15
Volume
4.3370257312487E+22
Height
33781569.680207