81796791 is an odd 8-digits composite number following 81796790
and preceding 81796792 . In scientific notation, it is written as 8.1796791 × 10^7.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 51784320 positive integers (up to 81796791) that are relatively prime to 81796791.
81796791 has 16 divisors, whose sum is 114680160
The reverse of 81796791 is 19769718
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
eighty-one million seven hundred ninety-six thousand seven hundred ninety-one
Scientific notation
8.1796791 × 10^7
Engineering notation
8.1796791 × 10^6
Prime Factorization
3 × 29 × 61 × 15413
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81796791
Product of the distinct prime numbers
The prime factorization of 81796791 is 3 × 29 × 61 × 15413.
Since it has a total of 4 prime factors.
6 , 9 , 38 , 85 , 993 , 305 , 9950 , 9950 , 37284 , 59653 , 984281 , 253917 , 4863730 , 5810781 , 48004721 , 31539012 , 188966291 , 871950664 , 827701181 , 9195438993
n×2
163593582
n×3
245390373
n×4
327187164
n×5
408983955
n÷2
40898395.5
n÷3
27265597
n÷3
20449197.75
n÷5
16359358.2
n2
6690715017897681
n3
5.4727901795954E+23
n4
4.4765667450722E+31
n5
3.6616879444422E+39
2 √n
9044.1578380743
3 √n
434.0889745872
4 √n
95.100777273765
5 √n
38.242586106131
1 , 3 , 29 , 61 , 87 , 183 , 1769 , 5307 , 15413 , 46239 , 446977 , 940193 , 1340931 , 2820579 , 27265597 , 81796791
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
-81796790
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 81796791 can be divided by 16 positive divisors.
The sum of these divisors (counting 81796791) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111000000001111010110111
3
Ternary
12200220201002210
4
Quaternary
10320001322313
5
Quinary
131414444131
6
Senary
12041104503
8
Octal
470017267
10
Decimal
81796791
12
Duodecimal
23488133
16
Hexadecimal
4e01eb7
20
Vigesimal
15b4bjb
36
Base36
1cp6t3
md5
fd08da9414bdedb19916ef05673664b8
sha1
3f2bbee1708e599abf49230a97cf9230e2c2609e
sha256
0c1b4917b9aa039f1c33d461b4e72a527a362fb67836ad323137d6a5a82b49c4
sha512
fa89d5d7aeaa7a518a1bb0fd6d042d07c0ec1963aa841a00bb41f618f18ceb5758225d749b6d5ae39ed68bf807d86664e6d990b0c226019177514a0f7ebe05ba
ripemd-160
d07688cede078296824044f60de2aca4b219df83
Diameter
163593582
Circumference
513944395.38564
Area
2.101950114749E+16
Volume
2.292436989714E+24
Surface area
8.4078004589961E+16
Circumference
513944395.38564
Perimeter
327187164
Area
6690715017897681
Diagonal
115678131.1908
Surface area
40144290107386086
Volume
5.4727901795954E+23
Space diagonal
141676197.90809
Perimeter
245390373
Area
2.8971645874907E+15
Altitude
70838098.954046
Surface area
2.8971645874907E+15
Volume
6.4497450800051E+22
Height
38559377.063599