81680411 is an odd 8-digits composite number following 81680410
and preceding 81680412 . In scientific notation, it is written as 8.1680411 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 77244192 positive integers (up to 81680411) that are relatively prime to 81680411.
81680411 has 8 divisors, whose sum is 86131920
The reverse of 81680411 is 11408618
Previous prime number is 613
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
eighty-one million six hundred eighty thousand four hundred eleven
Scientific notation
8.1680411 × 10^7
Engineering notation
8.1680411 × 10^6
Prime Factorization
19 × 613 × 7013
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81680411
Product of the distinct prime numbers
The prime factorization of 81680411 is 19 × 613 × 7013.
Since it has a total of 3 prime factors.
1 , 7 , 22 , 91 , 955 , 935 , 6871 , 3749 , 45017 , 92715 , 808131 , 334807 , 2700525 , 2841769 , 8803746 , 60147683 , 435909770 , 713205110 , 9593286185 , 9396924567
n×2
163360822
n×3
245041233
n×4
326721644
n×5
408402055
n÷2
40840205.5
n÷3
27226803.666667
n÷3
20420102.75
n÷5
16336082.2
n2
6671689541128921
n3
5.4494634378381E+23
n4
4.4511441333209E+31
n5
3.6357128222989E+39
2 √n
9037.7215602164
3 √n
433.8830037795
4 √n
95.066932001703
5 √n
38.231697641591
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
-81680410
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 81680411 can be divided by 8 positive divisors.
The sum of these divisors (counting 81680411) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111100101100000011011
3
Ternary
12200200210110102
4
Quaternary
10313211200123
5
Quinary
131402233121
6
Senary
12034410015
8
Octal
467454033
10
Decimal
81680411
12
Duodecimal
2343090b
16
Hexadecimal
4de581b
20
Vigesimal
15aa10b
36
Base36
1cmp0b
md5
855ab790d91b741cf70f61f4aa8541f6
sha1
203e584d8a19fb9cbf9c5c07e0d04b040e212142
sha256
286385e0b7c2c388b21065a6945dab1d05be773a813ebf543b075694a46c4cf1
sha512
dcb785e2b89bab48a819b0280542a30b0e2565d74834d48d643559f4db2dcbcc60388a3e631cf5d5bb66d385aa84fdc23c77d4c7666a89b2c99ad151a37873c8
ripemd-160
2fb20c166ae0827bbdf90ebda46a811645fe4091
Diameter
163360822
Circumference
513213158.27959
Area
2.0959730849442E+16
Volume
2.2826659069758E+24
Surface area
8.383892339777E+16
Circumference
513213158.27959
Perimeter
326721644
Area
6671689541128921
Diagonal
115513545.01641
Surface area
40030137246773526
Volume
5.4494634378381E+23
Space diagonal
141474621.83511
Perimeter
245041233
Area
2.8889263143903E+15
Altitude
70737310.917554
Surface area
2.8889263143903E+15
Volume
6.4222542512058E+22
Height
38504515.00547