80821990 is an even 8-digits composite number following 80821989
and preceding 80821991 . In scientific notation, it is written as 8.0821990 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 32328792 positive integers (up to 80821990) that are relatively prime to 80821990.
80821990 has 8 divisors, whose sum is 145479600
The reverse of 80821990 is 09912808
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty million eight hundred twenty-one thousand nine hundred ninety
Scientific notation
8.0821990 × 10^7
Engineering notation
8.0821990 × 10^6
Prime Factorization
2 × 5 × 8082199
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
80821990
Product of the distinct prime numbers
The prime factorization of 80821990 is 2 × 5 × 8082199.
Since it has a total of 3 prime factors.
8 , 10 , 32 , 45 , 610 , 592 , 6836 , 7219 , 18600 , 72104 , 65996 , 403622 , 9027598 , 1003192 , 93122554 , 93476395 , 70877940 , 128644680 , 3881221638 , 9426399758
n×2
161643980
n×3
242465970
n×4
323287960
n×5
404109950
n÷2
40410995
n÷3
26940663.333333
n÷3
20205497.5
n÷5
16164398
n2
6532194067560100
n3
5.279449236064E+23
n4
4.2669559336267E+31
n5
3.4486386979802E+39
2 √n
8990.1051161819
3 √n
432.3576820213
4 √n
94.816164846412
5 √n
38.15099840831
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-80821989
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 80821990 can be divided by 8 positive divisors.
The sum of these divisors (counting 80821990) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110100010011111011100110
3
Ternary
12122002011221001
4
Quaternary
10310103323212
5
Quinary
131142300430
6
Senary
12004143514
8
Octal
464237346
10
Decimal
80821990
12
Duodecimal
23097b9a
16
Hexadecimal
4d13ee6
20
Vigesimal
1552eja
36
Base36
1c4ana
md5
aae11b28078dab30e34549889b3500f9
sha1
cb8a9071b282ee4da3c4d26befb76fe386883151
sha256
4a9d85182aa6b8c7bb3f67d42a6e78997b6bb211304a74aa9104a58b12e32558
sha512
0ae52747b7630e4689c9340ecbf06d8bc7066534a60b8e0dd3b1b8292db0e988bec8b925a11159984f054188ad52d3cf811e27548f64aad42466a38d8abfdb79
ripemd-160
43eac40f9a47a794dea51200cb23e1d289119a4e
Diameter
161643980
Circumference
507819540.06502
Area
2.052149289447E+16
Volume
2.2114505246692E+24
Surface area
8.2085971577879E+16
Circumference
507819540.06502
Perimeter
323287960
Area
6532194067560100
Diagonal
114299554.39598
Surface area
39193164405360600
Volume
5.279449236064E+23
Space diagonal
139987793.04882
Perimeter
242465970
Area
2.8285230024785E+15
Altitude
69993896.524412
Surface area
2.8285230024785E+15
Volume
6.2218905929183E+22
Height
38099851.465328