81361204 is an even 8-digits composite number following 81361203
and preceding 81361205 . In scientific notation, it is written as 8.1361204 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 6 positive divisors.
There are 40680600 positive integers (up to 81361204) that are relatively prime to 81361204.
81361204 has 6 divisors, whose sum is 142382114
The reverse of 81361204 is 40216318
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 three hundred sixty-one thousand two hundred four
Scientific notation
8.1361204 × 10^7
Engineering notation
8.1361204 × 10^6
Prime Factorization
2 × 2 × 20340301
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
40680602
Product of the distinct prime numbers
The prime factorization of 81361204 is 2 × 2 × 20340301.
Since it has a total of 3 prime factors.
4 , 8 , 60 , 32 , 62 , 766 , 6359 , 7859 , 90972 , 49205 , 500760 , 138542 , 4420031 , 3154603 , 37346339 , 96834032 , 341666317 , 804617143 , 3896838902 , 4746746473
n×2
162722408
n×3
244083612
n×4
325444816
n×5
406806020
n÷2
40680602
n÷3
27120401.333333
n÷3
20340301
n÷5
16272240.8
n2
6619645516329616
n3
5.3858232926178E+23
n4
4.3819706761863E+31
n5
3.5652241010721E+39
2 √n
9020.0445675174
3 √n
433.31706105891
4 √n
94.973915195265
5 √n
38.201768929844
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
-81361203
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 81361204 can be divided by 6 positive divisors.
The sum of these divisors (counting 81361204) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
100110110010111100100110100
3
Ternary
12200002120120221
4
Quaternary
10312113210310
5
Quinary
131312024304
6
Senary
12023504124
8
Octal
466274464
10
Decimal
81361204
12
Duodecimal
232b8044
16
Hexadecimal
4d97934
20
Vigesimal
158a304
36
Base36
1cfupg
md5
56abab0c8b28d51d9862ece715af7545
sha1
6aaa51efb8d81e1ee8faad06257b8aa53df33d70
sha256
061688f068ff4b06a51037dc130a849969a2f8a2354b84c478f29d6258890573
sha512
51656260ee56bc115b1715c77eda7a5fd05001ba43c5bb11b14be137282e7e0bea029264e54ffe2ecb4f65aa1e478e22d34ecde5562e875cf3a355706618d350
ripemd-160
46e6d4286543df364d68e41d37df3e6a1c0943c5
Diameter
162722408
Circumference
511207521.54724
Area
2.079622972347E+16
Volume
2.2560083852828E+24
Surface area
8.3184918893879E+16
Circumference
511207521.54724
Perimeter
325444816
Area
6619645516329616
Diagonal
115062118.1478
Surface area
39717873097977696
Volume
5.3858232926178E+23
Space diagonal
140921739.09298
Perimeter
244083612
Area
2.8663905905946E+15
Altitude
70460869.546488
Surface area
2.8663905905946E+15
Volume
6.3472536208042E+22
Height
38354039.382601