81024871 is an odd 8-digits prime number following 81024870
and preceding 81024872 . In scientific notation, it is written as 8.1024871 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 81024870 positive integers (up to 81024871) that are relatively prime to 81024871.
81024871 has 2 divisors, whose sum is 81024872
The reverse of 81024871 is 17842018
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million twenty-four thousand eight hundred seventy-one
Scientific notation
8.1024871 × 10^7
Engineering notation
8.1024871 × 10^6
Prime Factorization
81024871
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81024871
Product of the distinct prime numbers
The prime factorization of 81024871 is 81024871.
Since it has a total of 1 prime factors.
7 , 4 , 15 , 34 , 827 , 343 , 8133 , 1648 , 96729 , 65407 , 13530 , 831239 , 6175928 , 4144028 , 22035233 , 80100780 , 281509726 , 788855301 , 326676482 , 4008553530
n×2
162049742
n×3
243074613
n×4
324099484
n×5
405124355
n÷2
40512435.5
n÷3
27008290.333333
n÷3
20256217.75
n÷5
16204974.2
n2
6565029720566641
n3
5.3193068622008E+23
n4
4.3099615231923E+31
n5
3.4921407643162E+39
2 √n
9001.3816161743
3 √n
432.71915074455
4 √n
94.875611282217
5 √n
38.170132687576
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81024872
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40512436
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9001.3816717213
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999753162
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81024871 can be divided by 2 positive divisors.
The sum of these divisors (counting 81024871) is 81024872, the average is 40512436.
Base
System
Value
2
Binary
100110101000101011101100111
3
Ternary
12122110111020011
4
Quaternary
10311011131213
5
Quinary
131220243441
6
Senary
12012351051
8
Octal
465053547
10
Decimal
81024871
12
Duodecimal
23175487
16
Hexadecimal
4d45767
20
Vigesimal
156823b
36
Base36
1c8n6v
md5
8ba98504fe2c0ff1d9a11cbf59c322ab
sha1
59847e4c7ca20213d887a6b28e3e6a73d00206df
sha256
f1604e122ae87e32c70a5c3b4eae0a7e97282c5de0a10cb984c496ee360f3a1a
sha512
b4f6c00f1542c8bf964b6b0f6700b5fdc1c5708e67e466fbb9cc62372452808046b68fd8fe89745ddc033b985cf8dc0761a07d4374307bf32ce5da1f8042686f
ripemd-160
5b92eb2ad48fc7c8ea49dfe0a7fe1b3f976a79bb
Diameter
162049742
Circumference
509094278.98332
Area
2.0624649140731E+16
Volume
2.228146048064E+24
Surface area
8.2498596562923E+16
Circumference
509094278.98332
Perimeter
324099484
Area
6565029720566641
Diagonal
114586471.45773
Surface area
39390178323399846
Volume
5.3193068622008E+23
Space diagonal
140339193.24871
Perimeter
243074613
Area
2.8427412573053E+15
Altitude
70169596.624357
Surface area
2.8427412573053E+15
Volume
6.2688632557905E+22
Height
38195490.48591