81888093 is an odd 8-digits composite number following 81888092
and preceding 81888094 . In scientific notation, it is written as 8.1888093 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 46793160 positive integers (up to 81888093) that are relatively prime to 81888093.
81888093 has 12 divisors, whose sum is 135180448
The reverse of 81888093 is 39088818
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty-one million eight hundred eighty-eight thousand ninety-three
Scientific notation
8.1888093 × 10^7
Engineering notation
8.1888093 × 10^6
Prime Factorization
3 × 3 × 7 × 1299811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
27296031
Product of the distinct prime numbers
The prime factorization of 81888093 is 3 × 3 × 7 × 1299811.
Since it has a total of 4 prime factors.
4 , 7 , 75 , 70 , 124 , 780 , 3377 , 2761 , 44421 , 81273 , 184640 , 459125 , 2851285 , 8052251 , 53444106 , 79109901 , 616547257 , 495226483 , 3612278003 , 7867225250
n×2
163776186
n×3
245664279
n×4
327552372
n×5
409440465
n÷2
40944046.5
n÷3
27296031
n÷3
20472023.25
n÷5
16377618.6
n2
6705659775176649
n3
5.4911369129602E+23
n4
4.4965873020422E+31
n5
3.6821695917225E+39
2 √n
9049.2039981426
3 √n
434.2504253155
4 √n
95.127304167324
5 √n
38.251119611296
1 , 3 , 7 , 9 , 21 , 63 , 1299811 , 3899433 , 9098677 , 11698299 , 27296031 , 81888093
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81888092
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81888093 can be divided by 12 positive divisors.
The sum of these divisors (counting 81888093) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100111000011000001101011101
3
Ternary
12201002100100100
4
Quaternary
10320120031131
5
Quinary
131430404333
6
Senary
12043051313
8
Octal
470301535
10
Decimal
81888093
12
Duodecimal
23510b39
16
Hexadecimal
4e1835d
20
Vigesimal
15bg04d
36
Base36
1cr599
md5
db4c231b4be87dd20b72fbac308854e1
sha1
cbe5b0ee14cced299abc567da04223818e1df310
sha256
9e074d8ee6645544a5ac8a73ee88232f78dc6fa7228818362038820b81d9cadb
sha512
ff9e3669b987435de3972415f871de5cf02e8ea4da86dc91b5516ca26d2613c0f65e061adad2b9d1c3f2cf4ec242d7046c26abc2cb27500a466dab340f985dc9
ripemd-160
b17a2e32aefce84106cc1c7a2df0e769d0986dbe
Diameter
163776186
Circumference
514518062.77056
Area
2.1066451487168E+16
Volume
2.3001220514149E+24
Surface area
8.426580594867E+16
Circumference
514518062.77056
Perimeter
327552372
Area
6705659775176649
Diagonal
115807251.71747
Surface area
40233958651059894
Volume
5.4911369129602E+23
Space diagonal
141834337.61093
Perimeter
245664279
Area
2.9036358572192E+15
Altitude
70917168.805463
Surface area
2.9036358572192E+15
Volume
6.4713669126299E+22
Height
38602417.239156