81278110 is an even 8-digits composite number following 81278109
and preceding 81278111 . In scientific notation, it is written as 8.1278110 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 32511240 positive integers (up to 81278110) that are relatively prime to 81278110.
81278110 has 8 divisors, whose sum is 146300616
The reverse of 81278110 is 01187218
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million two hundred seventy-eight thousand one hundred ten
Scientific notation
8.1278110 × 10^7
Engineering notation
8.1278110 × 10^6
Prime Factorization
2 × 5 × 8127811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81278110
Product of the distinct prime numbers
The prime factorization of 81278110 is 2 × 5 × 8127811.
Since it has a total of 3 prime factors.
5 , 8 , 49 , 33 , 949 , 708 , 8922 , 2088 , 93027 , 6675 , 242594 , 952469 , 3951548 , 2560887 , 6609060 , 607613 , 970536511 , 641936920 , 301021893 , 4099151703
n×2
162556220
n×3
243834330
n×4
325112440
n×5
406390550
n÷2
40639055
n÷3
27092703.333333
n÷3
20319527.5
n÷5
16255622
n2
6606131165172100
n3
5.3693385551729E+23
n4
4.3640968971458E+31
n5
3.5470554765688E+39
2 √n
9015.4373160707
3 √n
433.16949559081
4 √n
94.949656745407
5 √n
38.193962665423
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81278109
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81278110 can be divided by 8 positive divisors.
The sum of these divisors (counting 81278110) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110000011010010011110
3
Ternary
12122221100121101
4
Quaternary
10312003102132
5
Quinary
131301344420
6
Senary
12022023314
8
Octal
466032236
10
Decimal
81278110
12
Duodecimal
23277b3a
16
Hexadecimal
4d8349e
20
Vigesimal
157jf5a
36
Base36
1ce2la
md5
5c389c3bdb64ee1542260ea7ec1a7057
sha1
2abbbda59cb1156811b819f9a927d08c043f4e9f
sha256
28e967bf78e44ff4b44c8be553735f4f751e83e63719fee99d4128d6d3be67cd
sha512
d979c2b348fe6bfcae1dea5f089dca0a8d117741aba88d693e818a5b35a31d5d058af9fe79a18683eebab4ca5b4cfa63a511f9b88026875c6e6915a4ec38d861
ripemd-160
4bcd993b7aa2880c2eadf6924aaf6421960bc218
Diameter
162556220
Circumference
510685426.54733
Area
2.0753773137155E+16
Volume
2.249103274609E+24
Surface area
8.3015092548621E+16
Circumference
510685426.54733
Perimeter
325112440
Area
6606131165172100
Diagonal
114944605.48605
Surface area
39636786991032600
Volume
5.3693385551729E+23
Space diagonal
140777816.06317
Perimeter
243834330
Area
2.8605387048856E+15
Altitude
70388908.031586
Surface area
2.8605387048856E+15
Volume
6.3278261714152E+22
Height
38314868.495351