81400516 is an even 8-digits composite number following 81400515
and preceding 81400517 . In scientific notation, it is written as 8.1400516 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 6 positive divisors.
There are 40700256 positive integers (up to 81400516) that are relatively prime to 81400516.
81400516 has 6 divisors, whose sum is 142450910
The reverse of 81400516 is 61500418
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
eighty-one million four hundred thousand five hundred sixteen
Scientific notation
8.1400516 × 10^7
Engineering notation
8.1400516 × 10^6
Prime Factorization
2 × 2 × 20350129
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
40700258
Product of the distinct prime numbers
The prime factorization of 81400516 is 2 × 2 × 20350129.
Since it has a total of 3 prime factors.
1 , 2 , 35 , 43 , 830 , 429 , 2275 , 822 , 4497 , 61159 , 84576 , 826222 , 8853828 , 2408574 , 19873896 , 49746616 , 273508621 , 247076402 , 4175094518 , 4468055539
n×2
162801032
n×3
244201548
n×4
325602064
n×5
407002580
n÷2
40700258
n÷3
27133505.333333
n÷3
20350129
n÷5
16280103.2
n2
6626044005066256
n3
5.393634010511E+23
n4
4.3904459157074E+31
n5
3.5738456300868E+39
2 √n
9022.2234510125
3 √n
433.38683967831
4 √n
94.985385460146
5 √n
38.205459872695
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81400515
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81400516 can be divided by 6 positive divisors.
The sum of these divisors (counting 81400516) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110110100001001011000100
3
Ternary
12200011120111221
4
Quaternary
10312201023010
5
Quinary
131314304031
6
Senary
12024410124
8
Octal
466411304
10
Decimal
81400516
12
Duodecimal
23316944
16
Hexadecimal
4da12c4
20
Vigesimal
158f15g
36
Base36
1cgp1g
md5
4ac26ff78194f9ef3bc9fd64ea57c696
sha1
cf984ba7bc7b5171d7875deb98992a673f5f4740
sha256
ace493c35c11ab3bcd280bef99e53e3ff9c3d975587566378543c73ecd6433cc
sha512
f30e66043570c97a8bf085bab4aa96cf76534dd6f4dcfeef4205d6e1a7ed0b9310952ad90b743d8b92e720fe97a79d24c479c83f2575567abaf467b7416f7035
ripemd-160
edcba734651f7ca442cafeb8a3e4b714ee3bd428
Diameter
162801032
Circumference
511454526.12804
Area
2.0816331168679E+16
Volume
2.2592801311431E+24
Surface area
8.3265324674715E+16
Circumference
511454526.12804
Perimeter
325602064
Area
6626044005066256
Diagonal
115117713.71137
Surface area
39756264030397536
Volume
5.393634010511E+23
Space diagonal
140989829.47432
Perimeter
244201548
Area
2.8691612174905E+15
Altitude
70494914.737162
Surface area
2.8691612174905E+15
Volume
6.3564586401179E+22
Height
38372571.237123