81124546 is an even 8-digits composite number following 81124545
and preceding 81124547 . In scientific notation, it is written as 8.1124546 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 40562272 positive integers (up to 81124546) that are relatively prime to 81124546.
81124546 has 4 divisors, whose sum is 121686822
The reverse of 81124546 is 64542118
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million one hundred twenty-four thousand five hundred forty-six
Scientific notation
8.1124546 × 10^7
Engineering notation
8.1124546 × 10^6
Prime Factorization
2 × 40562273
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81124546
Product of the distinct prime numbers
The prime factorization of 81124546 is 2 × 40562273.
Since it has a total of 2 prime factors.
10 , 1 , 43 , 57 , 912 , 989 , 4202 , 9410 , 30025 , 31243 , 502266 , 676741 , 6991576 , 6518013 , 27582693 , 53807906 , 41449507 , 256091939 , 8703559334 , 262809278
n×2
162249092
n×3
243373638
n×4
324498184
n×5
405622730
n÷2
40562273
n÷3
27041515.333333
n÷3
20281136.5
n÷5
16224909.2
n2
6581191963706116
n3
5.3389621019451E+23
n4
4.331208766315E+31
n5
3.5136734479852E+39
2 √n
9006.9165645075
3 √n
432.89651853509
4 √n
94.90477629976
5 √n
38.179519280043
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81124545
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81124546 can be divided by 4 positive divisors.
The sum of these divisors (counting 81124546) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101011101110011000010
3
Ternary
12122122112221211
4
Quaternary
10311131303002
5
Quinary
131231441141
6
Senary
12014440334
8
Octal
465356302
10
Decimal
81124546
12
Duodecimal
232030aa
16
Hexadecimal
4d5dcc2
20
Vigesimal
1570b76
36
Base36
1cas3m
md5
eb99106f0b2e2fbc2e23c8d38e59e7e7
sha1
2c516f7dea41163d3ad0cb663927f69d2b541644
sha256
5b5f8bcb4a174ac15c79a3199f0780559f839d7be6e23e573761a883fc5d8095
sha512
99da4d1d1b60f9aaec98f55065c3cff64e48e80f1958d77b42689337e3b4bd56d50a543a2caffc0a44deb32abdc75f0f52577fe2293c3f13924779a6659adf74
ripemd-160
e33cd32aba5996d84196d71d5021c91e772bd232
Diameter
162249092
Circumference
509720555.47881
Area
2.0675424325043E+16
Volume
2.2363792156353E+24
Surface area
8.2701697300173E+16
Circumference
509720555.47881
Perimeter
324498184
Area
6581191963706116
Diagonal
114727433.19456
Surface area
39487151782236696
Volume
5.3389621019451E+23
Space diagonal
140511835.41296
Perimeter
243373638
Area
2.8497397138757E+15
Altitude
70255917.706479
Surface area
2.8497397138757E+15
Volume
6.2920271779722E+22
Height
38242477.73152