81703856 is an even 8-digits composite number following 81703855
and preceding 81703857 . In scientific notation, it is written as 8.1703856 × 10^7.
The sum of its digits is 38. It has a total of 6 prime factors and 20 positive divisors.
There are 37709376 positive integers (up to 81703856) that are relatively prime to 81703856.
81703856 has 20 divisors, whose sum is 170478672
The reverse of 81703856 is 65830718
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million seven hundred three thousand eight hundred fifty-six
Scientific notation
8.1703856 × 10^7
Engineering notation
8.1703856 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 13 × 392807
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
10212982
Product of the distinct prime numbers
The prime factorization of 81703856 is 2 × 2 × 2 × 2 × 13 × 392807.
Since it has a total of 6 prime factors.
6 , 4 , 100 , 23 , 914 , 71 , 9678 , 4636 , 56897 , 58604 , 60095 , 123048 , 514111 , 924594 , 17829736 , 82837314 , 969012738 , 320789754 , 3372457030 , 9983794756
n×2
163407712
n×3
245111568
n×4
326815424
n×5
408519280
n÷2
40851928
n÷3
27234618.666667
n÷3
20425964
n÷5
16340771.2
n2
6675520085268736
n3
5.454157317719E+23
n4
4.4562568408826E+31
n5
3.6409336722649E+39
2 √n
9039.0185307919
3 √n
433.92451276875
4 √n
95.07375311195
5 √n
38.23389214391
1 , 2 , 4 , 8 , 13 , 16 , 26 , 52 , 104 , 208 , 392807 , 785614 , 1571228 , 3142456 , 5106491 , 6284912 , 10212982 , 20425964 , 40851928 , 81703856
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81703855
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81703856 can be divided by 20 positive divisors.
The sum of these divisors (counting 81703856) is 1, the average is 0.05.
Base
System
Value
2
Binary
100110111101011001110110000
3
Ternary
12200201222121202
4
Quaternary
10313223032300
5
Quinary
131404010411
6
Senary
12035110332
8
Octal
467531660
10
Decimal
81703856
12
Duodecimal
234423a8
16
Hexadecimal
4deb3b0
20
Vigesimal
15acjcg
36
Base36
1cn73k
md5
6ef601a439951d79518f9da2116af288
sha1
51724b7d4405ead45d6966bd66c61e91376763f3
sha256
f660d110148de77a0d496c67f9141768fbc77a6df72ec5d83f2a42fdde223baa
sha512
878cddca31f901b790c93d9826b823601571612b1b14a0472d1adf42404e568ae411bd6306e266578320dfbc5288f49f601cc14d78a9dc57476fdfe2eea62604
ripemd-160
f872f566256944837df5fdffa54199ee2c92bb23
Diameter
163407712
Circumference
513360467.55912
Area
2.0971764858771E+16
Volume
2.2846320747826E+24
Surface area
8.3887059435085E+16
Circumference
513360467.55912
Perimeter
326815424
Area
6675520085268736
Diagonal
115546701.25338
Surface area
40053120511612416
Volume
5.454157317719E+23
Space diagonal
141515229.76629
Perimeter
245111568
Area
2.890584988658E+15
Altitude
70757614.883146
Surface area
2.890584988658E+15
Volume
6.4277860416956E+22
Height
38515567.084459