80821381 is an odd 8-digits composite number following 80821380
and preceding 80821382 . In scientific notation, it is written as 8.0821381 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 78941772 positive integers (up to 80821381) that are relatively prime to 80821381.
80821381 has 4 divisors, whose sum is 82700992
The reverse of 80821381 is 18312808
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty million eight hundred twenty-one thousand three hundred eighty-one
Scientific notation
8.0821381 × 10^7
Engineering notation
8.0821381 × 10^6
Prime Factorization
43 × 1879567
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
80821381
Product of the distinct prime numbers
The prime factorization of 80821381 is 43 × 1879567.
Since it has a total of 2 prime factors.
10 , 10 , 85 , 65 , 451 , 416 , 5552 , 3153 , 41481 , 60979 , 477906 , 569071 , 1122395 , 6939076 , 42662256 , 51095588 , 889156452 , 559956973 , 8378616426 , 7345886303
n×2
161642762
n×3
242464143
n×4
323285524
n×5
404106905
n÷2
40410690.5
n÷3
26940460.333333
n÷3
20205345.25
n÷5
16164276.2
n2
6532095626747161
n3
5.2793298937777E+23
n4
4.2668273276969E+31
n5
3.4485087711301E+39
2 √n
8990.0712455464
3 √n
432.35659606895
4 √n
94.815986234107
5 √n
38.150940913987
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
-80821380
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 80821381 can be divided by 4 positive divisors.
The sum of these divisors (counting 80821381) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110100010011110010000101
3
Ternary
12122002011002111
4
Quaternary
10310103302011
5
Quinary
131142241011
6
Senary
12004141021
8
Octal
464236205
10
Decimal
80821381
12
Duodecimal
23097771
16
Hexadecimal
4d13c85
20
Vigesimal
1552d91
36
Base36
1c4a6d
md5
9cc2758383c3a4d2d698c5b050bee0ae
sha1
f356b1f590b95704d98383752df6537d7692a75a
sha256
5f149a54d63cbecbfa4bdaa5632c6cc598c088af866c0140cd910d3be236a3f1
sha512
1e060710e9f94921b9191d12a39d0fdc53a9debc46c86e18c0a1ef6871daee40e81716e100dba852f6313a3960dbee0f594657c8cb7d895d00ac3d18c931c0cb
ripemd-160
9ee1d29d9fb44037068f8d56059db77a80295a62
Diameter
161642762
Circumference
507815713.60516
Area
2.0521183633535E+16
Volume
2.2114005346892E+24
Surface area
8.208473453414E+16
Circumference
507815713.60516
Perimeter
323285524
Area
6532095626747161
Diagonal
114298693.13992
Surface area
39192573760482966
Volume
5.2793298937777E+23
Space diagonal
139986738.22988
Perimeter
242464143
Area
2.8284803763561E+15
Altitude
69993369.114941
Surface area
2.8284803763561E+15
Volume
6.2217499466851E+22
Height
38099564.379974