80821281 is an odd 8-digits composite number following 80821280
and preceding 80821282 . In scientific notation, it is written as 8.0821281 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 50711360 positive integers (up to 80821281) that are relatively prime to 80821281.
80821281 has 8 divisors, whose sum is 114100704
The reverse of 80821281 is 18212808
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty million eight hundred twenty-one thousand two hundred eighty-one
Scientific notation
8.0821281 × 10^7
Engineering notation
8.0821281 × 10^6
Prime Factorization
3 × 17 × 1584731
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
80821281
Product of the distinct prime numbers
The prime factorization of 80821281 is 3 × 17 × 1584731.
Since it has a total of 3 prime factors.
5 , 3 , 24 , 62 , 455 , 505 , 9017 , 9727 , 30286 , 2310 , 840806 , 328097 , 4378463 , 8761672 , 76757400 , 25026522 , 709735377 , 373543565 , 9450552173 , 7505323246
n×2
161642562
n×3
242463843
n×4
323285124
n×5
404106405
n÷2
40410640.5
n÷3
26940427
n÷3
20205320.25
n÷5
16164256.2
n2
6532079462480961
n3
5.279310297515E+23
n4
4.2668062104166E+31
n5
3.4484874370462E+39
2 √n
8990.0656838535
3 √n
432.35641775113
4 √n
94.815956905225
5 √n
38.150931473178
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
-80821280
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 80821281 can be divided by 8 positive divisors.
The sum of these divisors (counting 80821281) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110100010011110000100001
3
Ternary
12122002010221210
4
Quaternary
10310103300201
5
Quinary
131142240111
6
Senary
12004140333
8
Octal
464236041
10
Decimal
80821281
12
Duodecimal
230976a9
16
Hexadecimal
4d13c21
20
Vigesimal
1552d41
36
Base36
1c4a3l
md5
bdb21f45379e2585c7f240db2f963f39
sha1
7890435bafdbfd71659a6f0015e1d7c78e2083f5
sha256
4236170524f8b7e323c8a08cf2bc8ea191e68b6ae8622531809af1d181a775bb
sha512
98d1c914a104f88fffc4972fdc6adc1ad711c077cfada308d95af79c3a2078afa46413075248969ffd5dbfc039687480ef7c069858e6f0ba4accdd23c4c226d6
ripemd-160
231e8774e724394e64ea092c1d063b67a71693bf
Diameter
161642562
Circumference
507815085.28663
Area
2.0521132851995E+16
Volume
2.2113923262259E+24
Surface area
8.208453140798E+16
Circumference
507815085.28663
Perimeter
323285124
Area
6532079462480961
Diagonal
114298551.71857
Surface area
39192476774885766
Volume
5.279310297515E+23
Space diagonal
139986565.0248
Perimeter
242463843
Area
2.8284733770236E+15
Altitude
69993282.512401
Surface area
2.8284733770236E+15
Volume
6.2217268522681E+22
Height
38099517.239522