80521981 is an odd 8-digits composite number following 80521980
and preceding 80521982 . In scientific notation, it is written as 8.0521981 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 76283964 positive integers (up to 80521981) that are relatively prime to 80521981.
80521981 has 4 divisors, whose sum is 84760000
The reverse of 80521981 is 18912508
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty million five hundred twenty-one thousand nine hundred eighty-one
Scientific notation
8.0521981 × 10^7
Engineering notation
8.0521981 × 10^6
Prime Factorization
19 × 4237999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
80521981
Product of the distinct prime numbers
The prime factorization of 80521981 is 19 × 4237999.
Since it has a total of 2 prime factors.
1 , 10 , 27 , 44 , 778 , 219 , 7980 , 8824 , 76051 , 88305 , 120852 , 746053 , 4909686 , 151887 , 33732924 , 72020564 , 227444259 , 152198101 , 1122289774 , 2282772882
n×2
161043962
n×3
241565943
n×4
322087924
n×5
402609905
n÷2
40260990.5
n÷3
26840660.333333
n÷3
20130495.25
n÷5
16104396.2
n2
6483789424164361
n3
5.2208756882056E+23
n4
4.2039525296906E+31
n5
3.3851058572065E+39
2 √n
8973.4040920935
3 √n
431.8220521248
4 √n
94.728053353236
5 √n
38.122633169607
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
-80521980
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 80521981 can be divided by 4 positive divisors.
The sum of these divisors (counting 80521981) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110011001010101011111101
3
Ternary
12121111221101121
4
Quaternary
10303022223331
5
Quinary
131103200411
6
Senary
11553510541
8
Octal
463125375
10
Decimal
80521981
12
Duodecimal
22b72451
16
Hexadecimal
4ccaafd
20
Vigesimal
15354j1
36
Base36
1bxv5p
md5
44429a183c6146035449574f0200b911
sha1
faa5324b92db18569801f56216713256136dfe55
sha256
b7544ad8954fe09ad9b075a8b41788fd00632744ea2c6d17f8dc3253c6a7309c
sha512
9a0aba6ae6a53878f73ca422b50c4293736cfbd54c8733ec14e8a95b2729629a78d877e5ac1691691d4bc35da60d13c161a6db0b5c027ef58ac5ef6070c0e7af
ripemd-160
5712aeaa6046a6f7741f38214bf9f67e49b051ae
Diameter
161043962
Circumference
505934527.92419
Area
2.0369425222378E+16
Volume
2.1869152943163E+24
Surface area
8.1477700889512E+16
Circumference
505934527.92419
Perimeter
322087924
Area
6483789424164361
Diagonal
113875277.59935
Surface area
38902736544986166
Volume
5.2208756882056E+23
Space diagonal
139468162.2181
Perimeter
241565943
Area
2.8075631770576E+15
Altitude
69734081.109048
Surface area
2.8075631770576E+15
Volume
6.1528610047703E+22
Height
37958425.86645