81796785 is an odd 8-digits composite number following 81796784
and preceding 81796786 . In scientific notation, it is written as 8.1796785 × 10^7.
The sum of its digits is 51. It has a total of 5 prime factors and 32 positive divisors.
There are 36968448 positive integers (up to 81796785) that are relatively prime to 81796785.
81796785 has 32 divisors, whose sum is 151269120
The reverse of 81796785 is 58769718
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
eighty-one million seven hundred ninety-six thousand seven hundred eighty-five
Scientific notation
8.1796785 × 10^7
Engineering notation
8.1796785 × 10^6
Prime Factorization
3 × 7 × 5 × 89 × 8753
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
81796785
Product of the distinct prime numbers
The prime factorization of 81796785 is 3 × 7 × 5 × 89 × 8753.
Since it has a total of 5 prime factors.
1 , 10 , 28 , 5 , 764 , 766 , 6148 , 599 , 39357 , 85926 , 1529 , 352314 , 4225724 , 7584884 , 94310867 , 10850813 , 450439701 , 118385431 , 9548207975 , 21517837
n×2
163593570
n×3
245390355
n×4
327187140
n×5
408983925
n÷2
40898392.5
n÷3
27265595
n÷3
20449196.25
n÷5
16359357
n2
6690714036336225
n3
5.4727889752668E+23
n4
4.4765654316027E+31
n5
3.6616866014723E+39
2 √n
9044.1575063684
3 √n
434.08896397337
4 √n
95.100775529795
5 √n
38.242585545093
1 , 3 , 5 , 7 , 15 , 21 , 35 , 89 , 105 , 267 , 445 , 623 , 1335 , 1869 , 3115 , 8753 , 9345 , 26259 , 43765 , 61271 , 131295 , 183813 , 306355 , 779017 , 919065 , 2337051 , 3895085 , 5453119 , 11685255 , 16359357 , 27265595 , 81796785
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81796784
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81796785 can be divided by 32 positive divisors.
The sum of these divisors (counting 81796785) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100111000000001111010110001
3
Ternary
12200220201002120
4
Quaternary
10320001322301
5
Quinary
131414444120
6
Senary
12041104453
8
Octal
470017261
10
Decimal
81796785
12
Duodecimal
23488129
16
Hexadecimal
4e01eb1
20
Vigesimal
15b4bj5
36
Base36
1cp6sx
md5
948ed197908af29a6055fc20f7cb039b
sha1
9d589568f99cfe68af6fa88b7f234869162d7c0e
sha256
2080c3fe316301cee2757028bbc3339d72381f4f4fa7c7c5915f6a092cc88b89
sha512
fd48fda6062e32cfb251163ae6343b94c26453db95bf3a741e773bb91b1f29c4f13ca3e3c98b053ff2043c6b63b756d0d62c59d8368262067185ae0083fb27d5
ripemd-160
db24e52e2579452676c56b108510d14d644717a6
Diameter
163593570
Circumference
513944357.68653
Area
2.1019498063824E+16
Volume
2.292436485246E+24
Surface area
8.4077992255296E+16
Circumference
513944357.68653
Perimeter
327187140
Area
6690714036336225
Diagonal
115678122.70552
Surface area
40144284218017350
Volume
5.4727889752668E+23
Space diagonal
141676187.51579
Perimeter
245390355
Area
2.8971641624621E+15
Altitude
70838093.757894
Surface area
2.8971641624621E+15
Volume
6.4497436606902E+22
Height
38559374.235172