81016711 is an odd 8-digits composite number following 81016710
and preceding 81016712 . In scientific notation, it is written as 8.1016711 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 80951992 positive integers (up to 81016711) that are relatively prime to 81016711.
81016711 has 4 divisors, whose sum is 81081432
The reverse of 81016711 is 11761018
Previous prime number is 1277
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighty-one million sixteen thousand seven hundred eleven
Scientific notation
8.1016711 × 10^7
Engineering notation
8.1016711 × 10^6
Prime Factorization
1277 × 63443
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81016711
Product of the distinct prime numbers
The prime factorization of 81016711 is 1277 × 63443.
Since it has a total of 2 prime factors.
4 , 1 , 11 , 87 , 560 , 719 , 100 , 5451 , 45729 , 57161 , 387061 , 994400 , 2166287 , 5918941 , 12505257 , 28427720 , 349067958 , 226780183 , 8653957597 , 1936650281
n×2
162033422
n×3
243050133
n×4
324066844
n×5
405083555
n÷2
40508355.5
n÷3
27005570.333333
n÷3
20254177.75
n÷5
16203342.2
n2
6563707461257521
n3
5.3176999047724E+23
n4
4.3082255636968E+31
n5
3.4903826541683E+39
2 √n
9000.9283410102
3 √n
432.70462390125
4 √n
94.873222465615
5 √n
38.169363835181
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
-81016710
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 81016711 can be divided by 4 positive divisors.
The sum of these divisors (counting 81016711) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101000011011110000111
3
Ternary
12122110002000221
4
Quaternary
10311003132013
5
Quinary
131220013321
6
Senary
12012245211
8
Octal
465033607
10
Decimal
81016711
12
Duodecimal
23170807
16
Hexadecimal
4d43787
20
Vigesimal
15671fb
36
Base36
1c8gw7
md5
4417c24100922aba3f79a47a6ecc4e2f
sha1
0d2b27093ba5d6b7119a8ede0d464396fda417f1
sha256
cbe426bd5a28d4089b4d29fdc457662867cd0523f4bd05d6e6c713a6b3789c33
sha512
2e98725e70db87df59a8f933f441eb91575faa62b3b9f9eb69e7d76d8e64005f6c4a24dd773678a26caf20721a92b7762c60a643a72ae8888f3ace87879bd7cc
ripemd-160
d010f79413e24a43ced914afe0c5fca6439781d0
Diameter
162033422
Circumference
509043008.19121
Area
2.0620495140599E+16
Volume
2.2274729273104E+24
Surface area
8.2481980562397E+16
Circumference
509043008.19121
Perimeter
324066844
Area
6563707461257521
Diagonal
114574931.47506
Surface area
39382244767545126
Volume
5.3176999047724E+23
Space diagonal
140325059.71412
Perimeter
243050133
Area
2.8421687022292E+15
Altitude
70162529.857062
Surface area
2.8421687022292E+15
Volume
6.2669694382994E+22
Height
38191643.825021