71287557 is an odd 8-digits composite number following 71287556
and preceding 71287558 . In scientific notation, it is written as 7.1287557 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 41325680 positive integers (up to 71287557) that are relatively prime to 71287557.
71287557 has 16 divisors, whose sum is 108200448
The reverse of 71287557 is 75578217
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
seventy-one million two hundred eighty-seven thousand five hundred fifty-seven
Scientific notation
7.1287557 × 10^7
Engineering notation
7.1287557 × 10^6
Prime Factorization
3 × 11 × 23 × 93923
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
71287557
Product of the distinct prime numbers
The prime factorization of 71287557 is 3 × 11 × 23 × 93923.
Since it has a total of 4 prime factors.
6 , 4 , 22 , 97 , 423 , 353 , 6413 , 5523 , 66605 , 11430 , 240020 , 33021 , 8111032 , 8370207 , 67442454 , 36451369 , 308158673 , 485911216 , 8008463512 , 9506134585
n×2
142575114
n×3
213862671
n×4
285150228
n×5
356437785
n÷2
35643778.5
n÷3
23762519
n÷3
17821889.25
n÷5
14257511.4
n2
5081915783028249
n3
3.6227736105183E+23
n4
2.5825868025792E+31
n5
1.8410630389631E+39
2 √n
8443.1958996579
3 √n
414.64004593955
4 √n
91.886864674217
5 √n
37.205123147114
1 , 3 , 11 , 23 , 33 , 69 , 253 , 759 , 93923 , 281769 , 1033153 , 2160229 , 3099459 , 6480687 , 23762519 , 71287557
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71287556
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71287557 can be divided by 16 positive divisors.
The sum of these divisors (counting 71287557) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100001111111100001100000101
3
Ternary
11222010210010220
4
Quaternary
10033330030011
5
Quinary
121222200212
6
Senary
11023534553
8
Octal
417741405
10
Decimal
71287557
12
Duodecimal
1ba5a459
16
Hexadecimal
43fc305
20
Vigesimal
125aihh
36
Base36
16fxtx
md5
c8f1455a387c62e350a3d5226ed2a3cf
sha1
df4d620983b7f4915e6c756b1cfa1d4351a33744
sha256
ad142eee84852abebfa7093a780f5defd59c1cf2c63fc5a2e25b8f4165b72e71
sha512
cae4055aa7b133666c27ee55b6c16def6625004843ccaaf5ecec429b9b1f889143351989f8890b809fb298cc0b3009a97eb4a651f5b122caf1403a0cbfccfc80
ripemd-160
8e77305ed6521875ed5ab1bd8456e3cc95302560
Diameter
142575114
Circumference
447912930.72713
Area
1.5965309290124E+16
Volume
1.5175038613898E+24
Surface area
6.3861237160494E+16
Circumference
447912930.72713
Perimeter
285150228
Area
5081915783028249
Diagonal
100815829.93785
Surface area
30491494698169494
Volume
3.6227736105183E+23
Space diagonal
123473670.67146
Perimeter
213862671
Area
2.2005340839978E+15
Altitude
61736835.335731
Surface area
2.2005340839978E+15
Volume
4.2694796445019E+22
Height
33605276.645948