81508963 is an odd 8-digits composite number following 81508962
and preceding 81508964 . In scientific notation, it is written as 8.1508963 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 81471888 positive integers (up to 81508963) that are relatively prime to 81508963.
81508963 has 4 divisors, whose sum is 81546040
The reverse of 81508963 is 36980518
Previous prime number is 2347
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million five hundred eight thousand nine hundred sixty-three
Scientific notation
8.1508963 × 10^7
Engineering notation
8.1508963 × 10^6
Prime Factorization
2347 × 34729
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81508963
Product of the distinct prime numbers
The prime factorization of 81508963 is 2347 × 34729.
Since it has a total of 2 prime factors.
10 , 9 , 24 , 25 , 460 , 664 , 7535 , 6451 , 52496 , 83696 , 769877 , 183121 , 937239 , 715407 , 97246544 , 94354314 , 152248030 , 664837749 , 863755581 , 6280180686
n×2
163017926
n×3
244526889
n×4
326035852
n×5
407544815
n÷2
40754481.5
n÷3
27169654.333333
n÷3
20377240.75
n÷5
16301792.6
n2
6643711049335369
n3
5.4152199810297E+23
n4
4.4138896507061E+31
n5
3.5977156822549E+39
2 √n
9028.2314436439
3 √n
433.57921620705
4 √n
95.017006075986
5 √n
38.215634405985
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81508962
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81508963 can be divided by 4 positive divisors.
The sum of these divisors (counting 81508963) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110111011101001100011
3
Ternary
12200101002021111
4
Quaternary
10312323221203
5
Quinary
131331241323
6
Senary
12031004151
8
Octal
466735143
10
Decimal
81508963
12
Duodecimal
23369657
16
Hexadecimal
4dbba63
20
Vigesimal
1598c83
36
Base36
1cj0pv
md5
7dfc5d9f13f40a5d6611aa6469694dfa
sha1
9828c6aab7ea4138d9d80ecc647c5d13b5255fcb
sha256
21df4213bfaee7dac03a28ec3578c88fb7be96331ac8bb3d90ad0f7edb43b028
sha512
829f4b34721ee4aea6811a97dd572ef27b021fd4b4ab830edb8c110a08ee887c4332aae5a44e226896071fdf6c268e56e11c93f40917e66a25e3bf677c98f252
ripemd-160
781abcdedf7354e89cda14abd75b1faa374a3ee3
Diameter
163017926
Circumference
512135918.72504
Area
2.0871833825165E+16
Volume
2.2683220413301E+24
Surface area
8.3487335300661E+16
Circumference
512135918.72504
Perimeter
326035852
Area
6643711049335369
Diagonal
115271080.92957
Surface area
39862266296012214
Volume
5.4152199810297E+23
Space diagonal
141177665.18825
Perimeter
244526889
Area
2.8768112720639E+15
Altitude
70588832.594126
Surface area
2.8768112720639E+15
Volume
6.3818979503383E+22
Height
38423693.643189