81103711 is an odd 8-digits composite number following 81103710
and preceding 81103712 . In scientific notation, it is written as 8.1103711 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 74781792 positive integers (up to 81103711) that are relatively prime to 81103711.
81103711 has 8 divisors, whose sum is 87439520
The reverse of 81103711 is 11730118
Previous prime number is 1063
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
eighty-one million one hundred three thousand seven hundred eleven
Scientific notation
8.1103711 × 10^7
Engineering notation
8.1103711 × 10^6
Prime Factorization
13 × 1063 × 5869
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81103711
Product of the distinct prime numbers
The prime factorization of 81103711 is 13 × 1063 × 5869.
Since it has a total of 3 prime factors.
10 , 7 , 37 , 74 , 381 , 608 , 2107 , 5568 , 567 , 3175 , 178813 , 201641 , 3445029 , 6429485 , 89717161 , 34480894 , 754899083 , 986832754 , 3929915282 , 2085381546
n×2
162207422
n×3
243311133
n×4
324414844
n×5
405518555
n÷2
40551855.5
n÷3
27034570.333333
n÷3
20275927.75
n÷5
16220742.2
n2
6577811937971521
n3
5.3348495842959E+23
n4
4.3267609891321E+31
n5
3.5091637282864E+39
2 √n
9005.7598790996
3 √n
432.85945547728
4 √n
94.898682177887
5 √n
38.177557969797
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81103710
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81103711 can be divided by 8 positive divisors.
The sum of these divisors (counting 81103711) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011000101101011111
3
Ternary
12122121111101011
4
Quaternary
10311120231133
5
Quinary
131230304321
6
Senary
12014200051
8
Octal
465305537
10
Decimal
81103711
12
Duodecimal
231b3027
16
Hexadecimal
4d58b5f
20
Vigesimal
156hj5b
36
Base36
1cac0v
md5
eb109a5a6f50bc1c1b59f3f4214501cc
sha1
060338717de3aa82624ce5fb9807db9db98adf56
sha256
7beb1c89e3b0187763d976a0f341cc855f3fa25b561cdda44a4d763d5b699572
sha512
c9e3893747b4aab8587a9a10b923c07958db5752550c22f7766522cf082c7f75301dcb5cbb2e51f8c9ba45c31a3374d74e08a1e5b25b630d9918a353880e4ab4
ripemd-160
8cdcbe8d1d9d42fed6dad9fbfa88cf6a61e2757e
Diameter
162207422
Circumference
509589645.31294
Area
2.0664805661027E+16
Volume
2.2346565682708E+24
Surface area
8.2659222644106E+16
Circumference
509589645.31294
Perimeter
324414844
Area
6577811937971521
Diagonal
114697968.05499
Surface area
39466871627829126
Volume
5.3348495842959E+23
Space diagonal
140475748.13438
Perimeter
243311133
Area
2.8482761197999E+15
Altitude
70237874.067191
Surface area
2.8482761197999E+15
Volume
6.2871805294431E+22
Height
38232656.018329