80821491 is an odd 8-digits composite number following 80821490
and preceding 80821492 . In scientific notation, it is written as 8.0821491 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 53880992 positive integers (up to 80821491) that are relatively prime to 80821491.
80821491 has 4 divisors, whose sum is 107761992
The reverse of 80821491 is 19412808
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty million eight hundred twenty-one thousand four hundred ninety-one
Scientific notation
8.0821491 × 10^7
Engineering notation
8.0821491 × 10^6
Prime Factorization
3 × 26940497
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
80821491
Product of the distinct prime numbers
The prime factorization of 80821491 is 3 × 26940497.
Since it has a total of 2 prime factors.
7 , 9 , 49 , 4 , 63 , 532 , 8004 , 5127 , 48184 , 60130 , 997478 , 182078 , 4025009 , 6609449 , 70276368 , 30957329 , 104004312 , 998699843 , 4961887317 , 9695627568
n×2
161642982
n×3
242464473
n×4
323285964
n×5
404107455
n÷2
40410745.5
n÷3
26940497
n÷3
20205372.75
n÷5
16164298.2
n2
6532113407463081
n3
5.2793514497226E+23
n4
4.2668505567959E+31
n5
3.4485322387442E+39
2 √n
8990.0773634046
3 √n
432.35679221838
4 √n
94.816018495846
5 √n
38.150951298866
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
-80821490
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 80821491 can be divided by 4 positive divisors.
The sum of these divisors (counting 80821491) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110100010011110011110011
3
Ternary
12122002011020120
4
Quaternary
10310103303303
5
Quinary
131142241431
6
Senary
12004141323
8
Octal
464236363
10
Decimal
80821491
12
Duodecimal
23097843
16
Hexadecimal
4d13cf3
20
Vigesimal
1552deb
36
Base36
1c4a9f
md5
3ae3491190866703f83c8787e06abe04
sha1
69563a46e553e4db1e444c4b51f9fd62965bdad3
sha256
2a21bfd8f388ea0b7335206a3c3797292e949279fbd36feb6a732fdd2b60f705
sha512
11c94d2bf522afc97fe29fe5691c6ee4d53bf06d52d8fa43a80dc1a467b8bbcca07fdf7c38eab2d67ec3fe4824594142fd4c08b5427b59eb5033543f62e6d966
ripemd-160
71aaf8da7dfcb4c00f03f3b52390ff0800ae57d8
Diameter
161642982
Circumference
507816404.75555
Area
2.0521239493301E+16
Volume
2.2114095640223E+24
Surface area
8.2084957973206E+16
Circumference
507816404.75555
Perimeter
323285964
Area
6532113407463081
Diagonal
114298848.70342
Surface area
39192680444778486
Volume
5.2793514497226E+23
Space diagonal
139986928.75547
Perimeter
242464473
Area
2.828488075632E+15
Altitude
69993464.377735
Surface area
2.828488075632E+15
Volume
6.2217753506098E+22
Height
38099616.234472