81783312 is an even 8-digits composite number following 81783311
and preceding 81783313 . In scientific notation, it is written as 8.1783312 × 10^7.
The sum of its digits is 33. It has a total of 6 prime factors and 20 positive divisors.
There are 25163904 positive integers (up to 81783312) that are relatively prime to 81783312.
81783312 has 20 divisors, whose sum is 162519360
The reverse of 81783312 is 21338718
Previous prime number is 39
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
eighty-one million seven hundred eighty-three thousand three hundred twelve
Scientific notation
8.1783312 × 10^7
Engineering notation
8.1783312 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 39 × 131063
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
10222914
Product of the distinct prime numbers
The prime factorization of 81783312 is 2 × 2 × 2 × 2 × 39 × 131063.
Since it has a total of 6 prime factors.
3 , 1 , 55 , 6 , 830 , 772 , 5881 , 2562 , 49776 , 31522 , 999827 , 741525 , 5764955 , 5901011 , 21702089 , 34740745 , 216464356 , 721163836 , 8953687367 , 9643866141
n×2
163566624
n×3
245349936
n×4
327133248
n×5
408916560
n÷2
40891656
n÷3
27261104
n÷3
20445828
n÷5
16356662.4
n2
6688510121689344
n3
5.4700851009728E+23
n4
4.4736167647941E+31
n5
3.6586719564358E+39
2 √n
9043.4126301966
3 √n
434.06512928863
4 √n
95.096859202587
5 √n
38.241325651308
1 , 2 , 4 , 8 , 16 , 39 , 78 , 156 , 312 , 624 , 131063 , 262126 , 524252 , 1048504 , 2097008 , 5111457 , 10222914 , 20445828 , 40891656 , 81783312
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
-81783311
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 81783312 can be divided by 20 positive divisors.
The sum of these divisors (counting 81783312) is 1, the average is 0.05.
Base
System
Value
2
Binary
100110111111110101000010000
3
Ternary
12200220000121120
4
Quaternary
10313332220100
5
Quinary
131414031222
6
Senary
12040522240
8
Octal
467765020
10
Decimal
81783312
12
Duodecimal
23480380
16
Hexadecimal
4dfea10
20
Vigesimal
15b2i5c
36
Base36
1coweo
md5
ae2536ec657c3e962c2cb40a4563172c
sha1
21acd3e73fb5ca0dd7f693edd104afe8c9f291fa
sha256
8b640f9bc865f5a7613b0461af087e07e1d42275399c30f7f224c67eea4e438e
sha512
14fb5ba8253f95b67f0eb8e29c40555a9bb952d076c9a89f743cac441ab03d6763f5f3e4fb17332f52da7d270395db761d0177afa038a67f68d8c6777b4d2ded
ripemd-160
c43a832632a1cc439eba11fd859538fcc90a9769
Diameter
163566624
Circumference
513859704.33088
Area
2.101257426176E+16
Volume
2.2913038890303E+24
Surface area
8.4050297047041E+16
Circumference
513859704.33088
Perimeter
327133248
Area
6688510121689344
Diagonal
115659069.00619
Surface area
40131060730136064
Volume
5.4700851009728E+23
Space diagonal
141652851.59526
Perimeter
245349936
Area
2.8962098394262E+15
Altitude
70826425.797629
Surface area
2.8962098394262E+15
Volume
6.4465571142756E+22
Height
38553023.002063