81506710 is an even 8-digits composite number following 81506709
and preceding 81506711 . In scientific notation, it is written as 8.1506710 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 31185088 positive integers (up to 81506710) that are relatively prime to 81506710.
81506710 has 16 divisors, whose sum is 153091296
The reverse of 81506710 is 01760518
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million five hundred six thousand seven hundred ten
Scientific notation
8.1506710 × 10^7
Engineering notation
8.1506710 × 10^6
Prime Factorization
2 × 5 × 23 × 354377
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81506710
Product of the distinct prime numbers
The prime factorization of 81506710 is 2 × 5 × 23 × 354377.
Since it has a total of 4 prime factors.
7 , 4 , 8 , 33 , 835 , 207 , 5875 , 9329 , 26864 , 41641 , 116930 , 317705 , 3152997 , 1080285 , 24072578 , 71216827 , 741938046 , 539861694 , 755893720 , 369266902
n×2
163013420
n×3
244520130
n×4
326026840
n×5
407533550
n÷2
40753355
n÷3
27168903.333333
n÷3
20376677.5
n÷5
16301342
n2
6643343775024100
n3
5.4147709450119E+23
n4
4.4134016513151E+31
n5
3.5972184850726E+39
2 √n
9028.1066675134
3 √n
433.5752212968
4 √n
95.016349474779
5 √n
38.215423138971
1 , 2 , 5 , 10 , 23 , 46 , 115 , 230 , 354377 , 708754 , 1771885 , 3543770 , 8150671 , 16301342 , 40753355 , 81506710
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
-81506709
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 81506710 can be divided by 16 positive divisors.
The sum of these divisors (counting 81506710) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110111011000110010110
3
Ternary
12200100222012001
4
Quaternary
10312323012112
5
Quinary
131331203320
6
Senary
12030545514
8
Octal
466730626
10
Decimal
81506710
12
Duodecimal
2336829a
16
Hexadecimal
4dbb196
20
Vigesimal
15986fa
36
Base36
1ciyza
md5
7897876ab628a00d142c74a7a9cfb44a
sha1
162624aad4f0f144bb01e5f2c716472b388aff97
sha256
4a49675398738ad352f6ed818f3fae4a1cfef78fbbd5d014357806242d643e69
sha512
4679ba918e2b4f09b9db41d695acd6c7c39f6b466bda78b8161d5366efef0577cdea944453fea018d9631a7bbd31cfec0a8ec516bfbafe12bd7a807b315c03f5
ripemd-160
a0f8385d4a24510ffc452cca6009077d20d9c101
Diameter
163013420
Circumference
512121762.70855
Area
2.0870679998887E+16
Volume
2.2681339495628E+24
Surface area
8.3482719995549E+16
Circumference
512121762.70855
Perimeter
326026840
Area
6643343775024100
Diagonal
115267894.70641
Surface area
39860062650144600
Volume
5.4147709450119E+23
Space diagonal
141173762.87778
Perimeter
244520130
Area
2.876652237622E+15
Altitude
70586881.438891
Surface area
2.876652237622E+15
Volume
6.3813687563164E+22
Height
38422631.568804