81225344 is an even 8-digits composite number following 81225343
and preceding 81225345 . In scientific notation, it is written as 8.1225344 × 10^7.
The sum of its digits is 29. It has a total of 8 prime factors and 16 positive divisors.
There are 40612608 positive integers (up to 81225344) that are relatively prime to 81225344.
81225344 has 16 divisors, whose sum is 161816370
The reverse of 81225344 is 44352218
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million two hundred twenty-five thousand three hundred forty-four
Scientific notation
8.1225344 × 10^7
Engineering notation
8.1225344 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 2 × 2 × 634573
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
8
Total number of prime factors
rad
Radical
1269146
Product of the distinct prime numbers
The prime factorization of 81225344 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 634573.
Since it has a total of 8 prime factors.
8 , 1 , 91 , 85 , 93 , 281 , 729 , 3198 , 53526 , 16985 , 417841 , 111535 , 5313434 , 4295110 , 17754135 , 17369577 , 721222935 , 44684805 , 7345888095 , 4058397048
n×2
162450688
n×3
243676032
n×4
324901376
n×5
406126720
n÷2
40612672
n÷3
27075114.666667
n÷3
20306336
n÷5
16245068.8
n2
6597556507918336
n3
5.3588879691511E+23
n4
4.3527751875176E+31
n5
3.5355566196078E+39
2 √n
9012.5104160827
3 √n
433.0757369737
4 √n
94.934242589714
5 √n
38.189002249428
1 , 2 , 4 , 8 , 16 , 32 , 64 , 128 , 634573 , 1269146 , 2538292 , 5076584 , 10153168 , 20306336 , 40612672 , 81225344
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81225343
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81225344 can be divided by 16 positive divisors.
The sum of these divisors (counting 81225344) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110101110110011010000000
3
Ternary
12122211200020002
4
Quaternary
10311312122000
5
Quinary
131243202334
6
Senary
12020535132
8
Octal
465663200
10
Decimal
81225344
12
Duodecimal
232514a8
16
Hexadecimal
4d76680
20
Vigesimal
157d374
36
Base36
1ccxvk
md5
cff5dadc1f2cffb14ffb48aa2035e0ce
sha1
2e5348f2b6e7afb5cce688df1ef002653f2b3f8a
sha256
5dcdfe8bbd4f167a5d095d7d834d0257515cd21099a2ed76a519b2a72c261d47
sha512
7994252635f6dcb7fed3e6bafc705f0fe54f36213664ee840375e7dc3f69532a9296f3704b020860df2d7c9e1fd58d0dc77eeb8b01111767b5366736f8b682db
ripemd-160
6b8cd687cf82378833c89438e1893432a5e64446
Diameter
162450688
Circumference
510353887.99141
Area
2.072683505692E+16
Volume
2.2447257433728E+24
Surface area
8.2907340227679E+16
Circumference
510353887.99141
Perimeter
324901376
Area
6597556507918336
Diagonal
114869983.09322
Surface area
39585339047510016
Volume
5.3588879691511E+23
Space diagonal
140686422.67026
Perimeter
243676032
Area
2.8568257693803E+15
Altitude
70343211.33513
Surface area
2.8568257693803E+15
Volume
6.3155100376762E+22
Height
38289994.364407