81750266 is an even 8-digits composite number following 81750265
and preceding 81750267 . In scientific notation, it is written as 8.1750266 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 37632000 positive integers (up to 81750266) that are relatively prime to 81750266.
81750266 has 16 divisors, whose sum is 132404328
The reverse of 81750266 is 66205718
Previous prime number is 401
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million seven hundred fifty thousand two hundred sixty-six
Scientific notation
8.1750266 × 10^7
Engineering notation
8.1750266 × 10^6
Prime Factorization
2 × 13 × 401 × 7841
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81750266
Product of the distinct prime numbers
The prime factorization of 81750266 is 2 × 13 × 401 × 7841.
Since it has a total of 4 prime factors.
8 , 6 , 31 , 93 , 22 , 420 , 3145 , 7705 , 32415 , 2254 , 70860 , 522018 , 4860982 , 7262183 , 99146491 , 3919992 , 780476654 , 435782182 , 6880768023 , 9462368847
n×2
163500532
n×3
245250798
n×4
327001064
n×5
408751330
n÷2
40875133
n÷3
27250088.666667
n÷3
20437566.5
n÷5
16350053.2
n2
6683105991070756
n3
5.4634569247623E+23
n4
4.4663905687886E+31
n5
3.6512861705836E+39
2 √n
9041.5853698342
3 √n
434.00665750368
4 √n
95.087251352819
5 √n
38.238234734304
1 , 2 , 13 , 26 , 401 , 802 , 5213 , 7841 , 10426 , 15682 , 101933 , 203866 , 3144241 , 6288482 , 40875133 , 81750266
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
-81750265
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 81750266 can be divided by 16 positive divisors.
The sum of these divisors (counting 81750266) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111110110100011111010
3
Ternary
12200211100021122
4
Quaternary
10313312203322
5
Quinary
131412002031
6
Senary
12040105242
8
Octal
467664372
10
Decimal
81750266
12
Duodecimal
23465222
16
Hexadecimal
4df68fa
20
Vigesimal
15aifd6
36
Base36
1co6wq
md5
6257c45ab5a26102f8d2640fc22f7ca7
sha1
87049c7de4d0ddac5be38e2c9734708e8b0c0227
sha256
09742c0958f8a7ed185c103031010b13b5306e74ce9475682a712af0a7a83f19
sha512
640e612925892adfd7a5655c79e7f739f01a3a586c0a157967fc69476a4d44a273872f0a45415bc04979d55af5fd4fcca208de0c893cb3fa8f5ce98145a127c2
ripemd-160
031bf26b2d55527b1d410b1dde20b3ceba411cdc
Diameter
163500532
Circumference
513652070.18922
Area
2.099559668471E+16
Volume
2.2885274850717E+24
Surface area
8.3982386738839E+16
Circumference
513652070.18922
Perimeter
327001064
Area
6683105991070756
Diagonal
115612334.90481
Surface area
40098635946424536
Volume
5.4634569247623E+23
Space diagonal
141595614.24427
Perimeter
245250798
Area
2.8938697822256E+15
Altitude
70797807.122135
Surface area
2.8938697822256E+15
Volume
6.4387457337E+22
Height
38537444.968269