71991486 is an even 8-digits composite number following 71991485
and preceding 71991487 . In scientific notation, it is written as 7.1991486 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors.
There are 19897920 positive integers (up to 71991486) that are relatively prime to 71991486.
71991486 has 32 divisors, whose sum is 137810880
The reverse of 71991486 is 68419917
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-one million nine hundred ninety-one thousand four hundred eighty-six
Scientific notation
7.1991486 × 10^7
Engineering notation
7.1991486 × 10^6
Prime Factorization
2 × 9 × 217 × 7 × 2633
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
71991486
Product of the distinct prime numbers
The prime factorization of 71991486 is 2 × 9 × 217 × 7 × 2633.
Since it has a total of 5 prime factors.
6 , 1 , 49 , 96 , 605 , 529 , 8940 , 8497 , 21234 , 50736 , 364065 , 933841 , 1011602 , 921335 , 78214382 , 14744628 , 762459244 , 803110631 , 7742823965 , 3937256322
n×2
143982972
n×3
215974458
n×4
287965944
n×5
359957430
n÷2
35995743
n÷3
23997162
n÷3
17997871.5
n÷5
14398297.2
n2
5182774056488196
n3
3.7311560592883E+23
n4
2.6861146920607E+31
n5
1.9337738824788E+39
2 √n
8484.7796671452
3 √n
416.00036596985
4 √n
92.112863744133
5 √n
37.2783110373
1 , 2 , 7 , 9 , 14 , 18 , 63 , 126 , 217 , 434 , 1519 , 1953 , 2633 , 3038 , 3906 , 5266 , 13671 , 18431 , 23697 , 27342 , 36862 , 47394 , 165879 , 331758 , 571361 , 1142722 , 3999527 , 5142249 , 7999054 , 10284498 , 35995743 , 71991486
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71991485
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71991486 can be divided by 32 positive divisors.
The sum of these divisors (counting 71991486) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100010010101000000010111110
3
Ternary
12000110112202100
4
Quaternary
10102220002332
5
Quinary
121412211421
6
Senary
11051005530
8
Octal
422500276
10
Decimal
71991486
12
Duodecimal
201398a6
16
Hexadecimal
44a80be
20
Vigesimal
129iie6
36
Base36
16v0zi
md5
2613c5958ab86bfe98e8bbb19e0132b9
sha1
39fb665229bb01ce22511063c16aa8944f2af9e1
sha256
4a42c06de519395e86365676677ed77de8676f756842d61eb8db07b105fdace4
sha512
49cdc935d6c3e9b1694705e980cb91b8b1c8baf5cb341553be2267f4e58108e0fbffb21a8e4c9b12807a4cd8af3359f76d02d5f37d4304be6f79ba74f1f5fdd6
ripemd-160
7951efdd3351f764e4328b2498a9104d7663f7ef
Diameter
143982972
Circumference
452335847.07722
Area
1.6282164901079E+16
Volume
1.5629029953676E+24
Surface area
6.5128659604316E+16
Circumference
452335847.07722
Perimeter
287965944
Area
5182774056488196
Diagonal
101811335.87659
Surface area
31096644338929176
Volume
3.7311560592883E+23
Space diagonal
124692911.46438
Perimeter
215974458
Area
2.2442069974969E+15
Altitude
62346455.732192
Surface area
2.2442069974969E+15
Volume
4.3972095853134E+22
Height
33937111.958864