81109898 is an even 8-digits composite number following 81109897
and preceding 81109899 . In scientific notation, it is written as 8.1109898 × 10^7.
The sum of its digits is 44. It has a total of 3 prime factors and 8 positive divisors.
There are 38420460 positive integers (up to 81109898) that are relatively prime to 81109898.
81109898 has 8 divisors, whose sum is 128068320
The reverse of 81109898 is 89890118
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighty-one million one hundred nine thousand eight hundred ninety-eight
Scientific notation
8.1109898 × 10^7
Engineering notation
8.1109898 × 10^6
Prime Factorization
2 × 19 × 2134471
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81109898
Product of the distinct prime numbers
The prime factorization of 81109898 is 2 × 19 × 2134471.
Since it has a total of 3 prime factors.
2 , 4 , 60 , 65 , 761 , 949 , 7912 , 150 , 925 , 92529 , 402333 , 982838 , 4146418 , 1112083 , 41051524 , 22619867 , 19020593 , 229300241 , 5553017802 , 7130874264
n×2
162219796
n×3
243329694
n×4
324439592
n×5
405549490
n÷2
40554949
n÷3
27036632.666667
n÷3
20277474.5
n÷5
16221979.6
n2
6578815553570404
n3
5.3360705851091E+23
n4
4.32808140879E+31
n5
3.5105024160265E+39
2 √n
9006.1033749341
3 √n
432.87046209798
4 √n
94.900491963604
5 √n
38.178140427347
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81109897
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81109898 can be divided by 8 positive divisors.
The sum of these divisors (counting 81109898) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011010001110001010
3
Ternary
12122121210212022
4
Quaternary
10311122032022
5
Quinary
131231004043
6
Senary
12014244442
8
Octal
465321612
10
Decimal
81109898
12
Duodecimal
231b6722
16
Hexadecimal
4d5a38a
20
Vigesimal
156ieei
36
Base36
1cagsq
md5
2b0f3d99ea7e548480cb8bb2310cf352
sha1
46768b6bec2d5c859952829003c5b63ade2414db
sha256
0c638a59fef0f29db8b20b21562feb3cf8ff1198936e937cdb4533eed6e6a434
sha512
116c0063148c3837f84e023f35049dbfb854fcf43dd9a21fb89434b4c677dc67dd99892c3eb8e9fe5e9ed2deb0f04a39e9a05b7030479f07b968613adb00bf4a
ripemd-160
08a35f30ee7ce86985b5ed4f78dee4c32d7edf66
Diameter
162219796
Circumference
509628519.38043
Area
2.0667958612419E+16
Volume
2.2351680198954E+24
Surface area
8.2671834449676E+16
Circumference
509628519.38043
Perimeter
324439592
Area
6578815553570404
Diagonal
114706717.7943
Surface area
39472893321422424
Volume
5.3360705851091E+23
Space diagonal
140486464.33273
Perimeter
243329694
Area
2.8487106981021E+15
Altitude
70243232.166365
Surface area
2.8487106981021E+15
Volume
6.2886194927012E+22
Height
38235572.598099