81783670 is an even 8-digits composite number following 81783669
and preceding 81783671 . In scientific notation, it is written as 8.1783670 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 32607040 positive integers (up to 81783670) that are relatively prime to 81783670.
81783670 has 16 divisors, whose sum is 147689568
The reverse of 81783670 is 07638718
Previous prime number is 311
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million seven hundred eighty-three thousand six hundred seventy
Scientific notation
8.1783670 × 10^7
Engineering notation
8.1783670 × 10^6
Prime Factorization
2 × 5 × 311 × 26297
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81783670
Product of the distinct prime numbers
The prime factorization of 81783670 is 2 × 5 × 311 × 26297.
Since it has a total of 4 prime factors.
4 , 5 , 60 , 52 , 78 , 564 , 5406 , 1749 , 32899 , 63451 , 156492 , 688428 , 7093892 , 2385625 , 78189358 , 34345321 , 869344010 , 323060781 , 6809756049 , 7032486068
n×2
163567340
n×3
245351010
n×4
327134680
n×5
408918350
n÷2
40891835
n÷3
27261223.333333
n÷3
20445917.5
n÷5
16356734
n2
6688568678668900
n3
5.4701569358859E+23
n4
4.4736950969271E+31
n5
3.658752034877E+39
2 √n
9043.4324235878
3 √n
434.06576264967
4 √n
95.096963272167
5 √n
38.241359130927
1 , 2 , 5 , 10 , 311 , 622 , 1555 , 3110 , 26297 , 52594 , 131485 , 262970 , 8178367 , 16356734 , 40891835 , 81783670
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81783669
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81783670 can be divided by 16 positive divisors.
The sum of these divisors (counting 81783670) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111111110101101110110
3
Ternary
12200220001002211
4
Quaternary
10313332231312
5
Quinary
131414034140
6
Senary
12040524034
8
Octal
467765566
10
Decimal
81783670
12
Duodecimal
2348061a
16
Hexadecimal
4dfeb76
20
Vigesimal
15b2j3a
36
Base36
1cowom
md5
68a626149bc09deb8848a5485f40df53
sha1
4b124e66cd53163c6c59a87beb2bf809df8be090
sha256
98813674c081e9d4686bb864e9c6639d0625c26e5250433716fa9f2b242efd84
sha512
0d87a99bbf63182db51cd385160bea682914cd9ef0633420768c00cae28b5f82ad9851fdaf47da59b4f7b88476866b5205ec58ef38003597a90a6f9d46e114ca
ripemd-160
275660e9e4d7bf4e1ea57e1f86b3e6ab4b63075c
Diameter
163567340
Circumference
513861953.71122
Area
2.1012758223937E+16
Volume
2.2913339791683E+24
Surface area
8.4051032895748E+16
Circumference
513861953.71122
Perimeter
327134680
Area
6688568678668900
Diagonal
115659575.29465
Surface area
40131412072013400
Volume
5.4701569358859E+23
Space diagonal
141653471.66945
Perimeter
245351010
Area
2.8962351953421E+15
Altitude
70826735.834723
Surface area
2.8962351953421E+15
Volume
6.4466417725326E+22
Height
38553191.764882