81344489 is an odd 8-digits composite number following 81344488
and preceding 81344490 . In scientific notation, it is written as 8.1344489 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 81006720 positive integers (up to 81344489) that are relatively prime to 81344489.
81344489 has 4 divisors, whose sum is 81682260
The reverse of 81344489 is 98444318
Previous prime number is 241
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million three hundred forty-four thousand four hundred eighty-nine
Scientific notation
8.1344489 × 10^7
Engineering notation
8.1344489 × 10^6
Prime Factorization
241 × 337529
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81344489
Product of the distinct prime numbers
The prime factorization of 81344489 is 241 × 337529.
Since it has a total of 2 prime factors.
3 , 4 , 63 , 16 , 607 , 874 , 1440 , 2284 , 43063 , 67149 , 562031 , 316689 , 5855137 , 3842771 , 30001534 , 77627432 , 225325594 , 640856856 , 647571670 , 5780123525
n×2
162688978
n×3
244033467
n×4
325377956
n×5
406722445
n÷2
40672244.5
n÷3
27114829.666667
n÷3
20336122.25
n÷5
16268897.8
n2
6616925890671121
n3
5.3825045532751E+23
n4
4.3783708242634E+31
n5
3.5615633735221E+39
2 √n
9019.1179723962
3 √n
433.28738520042
4 √n
94.969036914124
5 √n
38.200199152072
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81344488
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81344489 can be divided by 4 positive divisors.
The sum of these divisors (counting 81344489) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110010011011111101001
3
Ternary
12200001201122212
4
Quaternary
10312103133221
5
Quinary
131311010424
6
Senary
12023254505
8
Octal
466233751
10
Decimal
81344489
12
Duodecimal
232aa435
16
Hexadecimal
4d937e9
20
Vigesimal
1588149
36
Base36
1cfht5
md5
8527b05ac921b3b19fd5ca41b71732a6
sha1
22540f4b3ec1b3ead030aafb2e6a04e6416fcc1f
sha256
7982c9e88f4d733117f97f10b3e35682c713ab702e9bf1eff77bd407055212bc
sha512
3e7d944efbbb14b8fe430b69d56c3fb76f90e861f00230caa43d907b6cf9a6852689cc2468bdde22d6a2bf85bf0026b61112ae1d37802649e95090272f553253
ripemd-160
f81427002555768d22e7ba7c8dabbac7f0eaba7a
Diameter
162688978
Circumference
511102498.10483
Area
2.078768576748E+16
Volume
2.2546182349977E+24
Surface area
8.3150743069922E+16
Circumference
511102498.10483
Perimeter
325377956
Area
6616925890671121
Diagonal
115038479.56811
Surface area
39701555344026726
Volume
5.3825045532751E+23
Space diagonal
140892787.86373
Perimeter
244033467
Area
2.8652129581401E+15
Altitude
70446393.931864
Surface area
2.8652129581401E+15
Volume
6.3433424489805E+22
Height
38346159.856036