81109452 is an even 8-digits composite number following 81109451
and preceding 81109453 . In scientific notation, it is written as 8.1109452 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 24 positive divisors.
There are 26869968 positive integers (up to 81109452) that are relatively prime to 81109452.
81109452 has 24 divisors, whose sum is 190421056
The reverse of 81109452 is 25490118
Previous prime number is 163
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million one hundred nine thousand four hundred fifty-two
Scientific notation
8.1109452 × 10^7
Engineering notation
8.1109452 × 10^6
Prime Factorization
2 × 2 × 3 × 163 × 41467
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
40554726
Product of the distinct prime numbers
The prime factorization of 81109452 is 2 × 2 × 3 × 163 × 41467.
Since it has a total of 5 prime factors.
7 , 4 , 78 , 20 , 69 , 915 , 4754 , 8719 , 33460 , 84408 , 443941 , 973451 , 609291 , 7893921 , 12738032 , 6418155 , 730545494 , 475531843 , 9284764790 , 48251489
n×2
162218904
n×3
243328356
n×4
324437808
n×5
405547260
n÷2
40554726
n÷3
27036484
n÷3
20277363
n÷5
16221890.4
n2
6578743203740304
n3
5.335982561041E+23
n4
4.3279862140759E+31
n5
3.5104059008725E+39
2 √n
9006.078613914
3 √n
432.86966868647
4 √n
94.900361505708
5 √n
38.178098441132
1 , 2 , 3 , 4 , 6 , 12 , 163 , 326 , 489 , 652 , 978 , 1956 , 41467 , 82934 , 124401 , 165868 , 248802 , 497604 , 6759121 , 13518242 , 20277363 , 27036484 , 40554726 , 81109452
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
-81109451
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 81109452 can be divided by 24 positive divisors.
The sum of these divisors (counting 81109452) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100110101011010000111001100
3
Ternary
12122121210020210
4
Quaternary
10311122013030
5
Quinary
131231000302
6
Senary
12014242420
8
Octal
465320714
10
Decimal
81109452
12
Duodecimal
231b6410
16
Hexadecimal
4d5a1cc
20
Vigesimal
156idcc
36
Base36
1caggc
md5
d64efb20ffacf0eed6ddea23e3a76d78
sha1
86df24cb38b847853c77ac7fb2cc7df970ef69c4
sha256
ee3735a1a8d79de072bbaa1a7fc333806c9d310d74391242ffe87ba4ca3ba425
sha512
df4be004a04ce3c6932ea15f3ffa4009ba9a7de85683d2b68fea3575eb499f01943da551ef9715151ab8d129fafb09d372b0452d313f082d798bce74080674e6
ripemd-160
fd8a8001cfbdfa7440a1a092001b6ed75506d42a
Diameter
162218904
Circumference
509625717.07979
Area
2.0667731318724E+16
Volume
2.23513114846E+24
Surface area
8.2670925274897E+16
Circumference
509625717.07979
Perimeter
324437808
Area
6578743203740304
Diagonal
114706087.05505
Surface area
39472459222441824
Volume
5.335982561041E+23
Space diagonal
140485691.83807
Perimeter
243328356
Area
2.8486793697067E+15
Altitude
70242845.919035
Surface area
2.8486793697067E+15
Volume
6.2885157553421E+22
Height
38235362.351683