80991666 is an even 8-digits composite number following 80991665
and preceding 80991667 . In scientific notation, it is written as 8.0991666 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 23140440 positive integers (up to 80991666) that are relatively prime to 80991666.
80991666 has 16 divisors, whose sum is 154270080
The reverse of 80991666 is 66619908
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty million nine hundred ninety-one thousand six hundred sixty-six
Scientific notation
8.0991666 × 10^7
Engineering notation
8.0991666 × 10^6
Prime Factorization
2 × 9 × 7 × 642791
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
80991666
Product of the distinct prime numbers
The prime factorization of 80991666 is 2 × 9 × 7 × 642791.
Since it has a total of 4 prime factors.
5 , 2 , 95 , 15 , 839 , 532 , 5460 , 480 , 22215 , 50928 , 337215 , 630912 , 9902013 , 2254850 , 91949814 , 24674093 , 656648118 , 52230497 , 2321652328 , 8675063432
n×2
161983332
n×3
242974998
n×4
323966664
n×5
404958330
n÷2
40495833
n÷3
26997222
n÷3
20247916.5
n÷5
16198333.2
n2
6559649961455556
n3
5.3127697875512E+23
n4
4.3029007616824E+31
n5
3.4849910132133E+39
2 √n
8999.53698809
3 √n
432.66003143769
4 √n
94.865889486633
5 √n
38.167003655574
1 , 2 , 7 , 9 , 14 , 18 , 63 , 126 , 642791 , 1285582 , 4499537 , 5785119 , 8999074 , 11570238 , 40495833 , 80991666
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
-80991665
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 80991666 can be divided by 16 positive divisors.
The sum of these divisors (counting 80991666) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110100111101010110110010
3
Ternary
12122101210200100
4
Quaternary
10310331112302
5
Quinary
131213213131
6
Senary
12011533230
8
Octal
464752662
10
Decimal
80991666
12
Duodecimal
2315a216
16
Hexadecimal
4d3d5b2
20
Vigesimal
1563j36
36
Base36
1c7xki
md5
0e76f84302b83f3fb7284b58f98891d6
sha1
364d51ce1198f9bbaf3835da98e265ec373bdd91
sha256
5861c756b4f68e1433a05dc9c6a853542cf092f857c392265ca222a8494e5a58
sha512
91def93d4fb0c31b4138b45f6ec51f103f28d1a044be40ff0e2d7459986f14cd67d1d0505bb93ea68dc75059827c9a7e467e435a93c3489c69b9abd4dd452976
ripemd-160
1298a2237d3c9252b3b12f4d3448cfcecba3eb91
Diameter
161983332
Circumference
508885645.8152
Area
2.0607748129029E+16
Volume
2.225407804638E+24
Surface area
8.2430992516117E+16
Circumference
508885645.8152
Perimeter
323966664
Area
6559649961455556
Diagonal
114539512.49639
Surface area
39357899768733336
Volume
5.3127697875512E+23
Space diagonal
140281680.50165
Perimeter
242974998
Area
2.8404117532771E+15
Altitude
70140840.250824
Surface area
2.8404117532771E+15
Volume
6.2611592394341E+22
Height
38179837.498797