81180306 is an even 8-digits composite number following 81180305
and preceding 81180307 . In scientific notation, it is written as 8.1180306 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors.
There are 26956800 positive integers (up to 81180306) that are relatively prime to 81180306.
81180306 has 32 divisors, whose sum is 169017408
The reverse of 81180306 is 60308118
Previous prime number is 313
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
eighty-one million one hundred eighty thousand three hundred six
Scientific notation
8.1180306 × 10^7
Engineering notation
8.1180306 × 10^6
Prime Factorization
2 × 27 × 3 × 313 × 1601
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81180306
Product of the distinct prime numbers
The prime factorization of 81180306 is 2 × 27 × 3 × 313 × 1601.
Since it has a total of 5 prime factors.
4 , 7 , 93 , 60 , 237 , 237 , 553 , 1363 , 47933 , 49778 , 508921 , 179479 , 8930885 , 361870 , 99566792 , 96719190 , 786750973 , 304642076 , 3633514597 , 5574004555
n×2
162360612
n×3
243540918
n×4
324721224
n×5
405901530
n÷2
40590153
n÷3
27060102
n÷3
20295076.5
n÷5
16236061.2
n2
6590242082253636
n3
5.3499786885143E+23
n4
4.3431290702707E+31
n5
3.5257654692207E+39
2 √n
9010.0114317353
3 √n
432.99567792552
4 √n
94.921080017746
5 √n
38.18476628612
1 , 2 , 3 , 6 , 27 , 54 , 81 , 162 , 313 , 626 , 939 , 1601 , 1878 , 3202 , 4803 , 8451 , 9606 , 16902 , 25353 , 43227 , 50706 , 86454 , 129681 , 259362 , 501113 , 1002226 , 1503339 , 3006678 , 13530051 , 27060102 , 40590153 , 81180306
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81180305
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81180306 can be divided by 32 positive divisors.
The sum of these divisors (counting 81180306) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110101101011011010010010
3
Ternary
12122202101110000
4
Quaternary
10311223122102
5
Quinary
131240232211
6
Senary
12015550430
8
Octal
465533222
10
Decimal
81180306
12
Duodecimal
2322b416
16
Hexadecimal
4d6b692
20
Vigesimal
1577af6
36
Base36
1cbz4i
md5
71ccd8eb0c233489eae130fc03c897bc
sha1
fcd1cc52c686b8da2a2408a4307e78856fcbcf7f
sha256
90b96e3574918669d7e8275006b55e7c6f090e12d183d37d7208f2e8ca9181a9
sha512
1a66003b0b8bafeab7b5ea2a883789224a77583ef7c111d2ac582f5b2561ea306ef75975f6f499f98a2a43c512f57d77400dbaa3d1552806d9e80785178b2c1a
ripemd-160
c0eb31a353f1351e9d4b459886e60529bb1ae4b2
Diameter
162360612
Circumference
510070905.89154
Area
2.0703856110986E+16
Volume
2.2409938326265E+24
Surface area
8.2815424443945E+16
Circumference
510070905.89154
Perimeter
324721224
Area
6590242082253636
Diagonal
114806289.7428
Surface area
39541452493521816
Volume
5.3499786885143E+23
Space diagonal
140608414.56599
Perimeter
243540918
Area
2.8536585301605E+15
Altitude
70304207.282994
Surface area
2.8536585301605E+15
Volume
6.3050103497533E+22
Height
38268763.247599