81093460 is an even 8-digits composite number following 81093459
and preceding 81093461 . In scientific notation, it is written as 8.1093460 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors.
There are 27803424 positive integers (up to 81093460) that are relatively prime to 81093460.
81093460 has 24 divisors, whose sum is 194624640
The reverse of 81093460 is 06439018
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million ninety-three thousand four hundred sixty
Scientific notation
8.1093460 × 10^7
Engineering notation
8.1093460 × 10^6
Prime Factorization
2 × 2 × 5 × 7 × 579239
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
40546730
Product of the distinct prime numbers
The prime factorization of 81093460 is 2 × 2 × 5 × 7 × 579239.
Since it has a total of 5 prime factors.
3 , 4 , 63 , 50 , 282 , 794 , 9695 , 7755 , 90730 , 1591 , 787038 , 755588 , 6284464 , 4695516 , 69722970 , 30047307 , 961545199 , 735072958 , 3189972628 , 2671329014
n×2
162186920
n×3
243280380
n×4
324373840
n×5
405467300
n÷2
40546730
n÷3
27031153.333333
n÷3
20273365
n÷5
16218692
n2
6576149254771600
n3
5.3328269654585E+23
n4
4.3245739021033E+31
n5
3.5069466074726E+39
2 √n
9005.1907253539
3 √n
432.84121780281
4 √n
94.895683386305
5 √n
38.176592840262
1 , 2 , 4 , 5 , 7 , 10 , 14 , 20 , 28 , 35 , 70 , 140 , 579239 , 1158478 , 2316956 , 2896195 , 4054673 , 5792390 , 8109346 , 11584780 , 16218692 , 20273365 , 40546730 , 81093460
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81093459
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81093460 can be divided by 24 positive divisors.
The sum of these divisors (counting 81093460) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110101010110001101010100
3
Ternary
12122120222022111
4
Quaternary
10311112031110
5
Quinary
131224442320
6
Senary
12014040404
8
Octal
465261524
10
Decimal
81093460
12
Duodecimal
231a9104
16
Hexadecimal
4d56354
20
Vigesimal
156gdd0
36
Base36
1ca444
md5
f4b9662a1c03e5d967d7a6823578fc76
sha1
6dcca21990feddc8353f05d80465cd82296c9c63
sha256
5dfbc804fe0f3e488c0286d842d96c5e1cef9f6db046d952eb57b731212ae2d2
sha512
ed2d67050cd4bcd60aa03118fb8353a0b0cc7fff0a2004ceeb7f366f295f2aab2f51e83c61eda12018a3ac66fe69266b6d3984ed33e7537298b978e677c09d98
ripemd-160
b2f0798b31a6f91eb52173ff2c13abf27831a228
Diameter
162186920
Circumference
509525236.38036
Area
2.06595821877E+16
Volume
2.2338093356733E+24
Surface area
8.2638328750802E+16
Circumference
509525236.38036
Perimeter
324373840
Area
6576149254771600
Diagonal
114683470.95176
Surface area
39456895528629600
Volume
5.3328269654585E+23
Space diagonal
140457992.88155
Perimeter
243280380
Area
2.8475561568552E+15
Altitude
70228996.440777
Surface area
2.8475561568552E+15
Volume
6.2847968502836E+22
Height
38227823.650587