81273670 is an even 8-digits composite number following 81273669
and preceding 81273671 . In scientific notation, it is written as 8.1273670 × 10^7.
The sum of its digits is 34. It has a total of 5 prime factors and 32 positive divisors.
There are 31950720 positive integers (up to 81273670) that are relatively prime to 81273670.
81273670 has 32 divisors, whose sum is 148832640
The reverse of 81273670 is 07637218
Previous prime number is 109
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million two hundred seventy-three thousand six hundred seventy
Scientific notation
8.1273670 × 10^7
Engineering notation
8.1273670 × 10^6
Prime Factorization
2 × 5 × 173 × 109 × 431
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81273670
Product of the distinct prime numbers
The prime factorization of 81273670 is 2 × 5 × 173 × 109 × 431.
Since it has a total of 5 prime factors.
4 , 5 , 32 , 45 , 166 , 612 , 5570 , 3223 , 43105 , 59814 , 10644 , 796559 , 494638 , 2206960 , 81800384 , 18628930 , 955708979 , 813095158 , 7145750379 , 942220631
n×2
162547340
n×3
243821010
n×4
325094680
n×5
406368350
n÷2
40636835
n÷3
27091223.333333
n÷3
20318417.5
n÷5
16254734
n2
6605409435268900
n3
5.3684586665693E+23
n4
4.3631433807539E+31
n5
3.5460867529008E+39
2 √n
9015.1910684134
3 √n
433.16160782709
4 √n
94.948360009077
5 √n
38.193545370041
1 , 2 , 5 , 10 , 109 , 173 , 218 , 346 , 431 , 545 , 862 , 865 , 1090 , 1730 , 2155 , 4310 , 18857 , 37714 , 46979 , 74563 , 93958 , 94285 , 149126 , 188570 , 234895 , 372815 , 469790 , 745630 , 8127367 , 16254734 , 40636835 , 81273670
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
-81273669
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 81273670 can be divided by 32 positive divisors.
The sum of these divisors (counting 81273670) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100110110000010001101000110
3
Ternary
12122221010111221
4
Quaternary
10312002031012
5
Quinary
131301224140
6
Senary
12021550554
8
Octal
466021506
10
Decimal
81273670
12
Duodecimal
2327545a
16
Hexadecimal
4d82346
20
Vigesimal
157j43a
36
Base36
1cdz5y
md5
9847df9ca2aa27c2344f32adb4a574e7
sha1
ea19b3f70141a1971ad8d2b3aeb373b64485fb51
sha256
65bccd9adc5e8de0de4e60840f901a0bb3bc6f731356e324e7205c96d7b8bdc0
sha512
8a9dcd025abb89b69cf286246fca3c1824cf5f615d5840218ca5a64e0eb0f32d60dd2474af2714cf6731ef624af5e0a720f8d053259054b2503cf60e5796d99a
ripemd-160
51e05e1a1054989cbb93f3069cf27c29f329e40a
Diameter
162547340
Circumference
510657529.20456
Area
2.0751505755793E+16
Volume
2.2487347077326E+24
Surface area
8.3006023023174E+16
Circumference
510657529.20456
Perimeter
325094680
Area
6605409435268900
Diagonal
114938326.37784
Surface area
39632456611613400
Volume
5.3684586665693E+23
Space diagonal
140770125.75759
Perimeter
243821010
Area
2.8602261866701E+15
Altitude
70385062.878793
Surface area
2.8602261866701E+15
Volume
6.3267892127514E+22
Height
38312775.459278