12821581 is an odd 8-digits prime number following 12821580
and preceding 12821582 . In scientific notation, it is written as 1.2821581 × 10^7.
The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors.
There are 12821580 positive integers (up to 12821581) that are relatively prime to 12821581.
12821581 has 2 divisors, whose sum is 12821582
The reverse of 12821581 is 18512821
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twelve million eight hundred twenty-one thousand five hundred eighty-one
Scientific notation
1.2821581 × 10^7
Engineering notation
1.2821581 × 10^6
Prime Factorization
12821581
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
12821581
Product of the distinct prime numbers
The prime factorization of 12821581 is 12821581.
Since it has a total of 1 prime factors.
10 , 7 , 47 , 28 , 368 , 424 , 1632 , 7026 , 37060 , 63261 , 544814 , 393343 , 8389555 , 7287108 , 30518348 , 17140858 , 526056423 , 420521159 , 7024240741 , 6659981642
n×2
25643162
n×3
38464743
n×4
51286324
n×5
64107905
n÷2
6410790.5
n÷3
4273860.3333333
n÷3
3205395.25
n÷5
2564316.2
n2
164392939339561
n3
2.1077773875703E+21
n4
2.7025038504701E+28
n5
3.4650372021614E+35
2 √n
3580.723530238
3 √n
234.05281029796
4 √n
59.839147138291
5 √n
26.399051063905
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
12821582
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
6410791
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3580.7236698746
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999844013
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12821581 can be divided by 2 positive divisors.
The sum of these divisors (counting 12821581) is 12821582, the average is 6410791.
Base
System
Value
2
Binary
110000111010010001001101
3
Ternary
220010101220101
4
Quaternary
300322101031
5
Quinary
11240242311
6
Senary
1134451101
8
Octal
60722115
10
Decimal
12821581
12
Duodecimal
4363a91
16
Hexadecimal
c3a44d
20
Vigesimal
402dj1
36
Base36
7mt71
md5
0f2ca08b3ea70003b92d9e7ed6fb7adc
sha1
444e4a9379f8f4e474fe87cb14ec695353fbb156
sha256
96d1b7acfde5ef829887f05f78ab92649badb4e3ee51005584c438fbad17a235
sha512
7f640535c20e14e650c7ed03c48fa4f738a4f163ee6be2ce3d688b1a916554796ee287841258a1a2bcdb5b2a830d133f01c1f0faa08f352178bcfdd6b7b97b3f
ripemd-160
8e870d40c362951c6b7fa06ab9187f7ca5ef26c9
Diameter
25643162
Circumference
80560369.354013
Area
5.164556505312E+14
Volume
8.8290372749246E+21
Surface area
2.0658226021248E+15
Circumference
80560369.354013
Perimeter
51286324
Area
164392939339561
Diagonal
18132453.741265
Surface area
986357636037366
Volume
2.1077773875703E+21
Space diagonal
22207629.72536
Perimeter
38464743
Area
71184230835427
Altitude
11103814.86268
Surface area
71184230835427
Volume
2.4840394733043E+20
Height
6044151.2470884