81121503 is an odd 8-digits composite number following 81121502
and preceding 81121504 . In scientific notation, it is written as 8.1121503 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 54048384 positive integers (up to 81121503) that are relatively prime to 81121503.
81121503 has 8 divisors, whose sum is 108227248
The reverse of 81121503 is 30512118
Previous prime number is 1873
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
eighty-one million one hundred twenty-one thousand five hundred three
Scientific notation
8.1121503 × 10^7
Engineering notation
8.1121503 × 10^6
Prime Factorization
3 × 1873 × 14437
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81121503
Product of the distinct prime numbers
The prime factorization of 81121503 is 3 × 1873 × 14437.
Since it has a total of 3 prime factors.
6 , 1 , 60 , 75 , 612 , 106 , 8076 , 9086 , 5393 , 23167 , 981800 , 17680 , 5539789 , 9137912 , 89281313 , 74612337 , 518607394 , 571439180 , 8871366086 , 5001169296
n×2
162243006
n×3
243364509
n×4
324486012
n×5
405607515
n÷2
40560751.5
n÷3
27040501
n÷3
20280375.75
n÷5
16224300.6
n2
6580698248979009
n3
5.3383613274665E+23
n4
4.3305589444115E+31
n5
3.5130145040076E+39
2 √n
9006.7476371885
3 √n
432.89110578543
4 √n
94.903886312355
5 √n
38.179232851271
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
-81121502
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 81121503 can be divided by 8 positive divisors.
The sum of these divisors (counting 81121503) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101011101000011011111
3
Ternary
12122122101210010
4
Quaternary
10311131003133
5
Quinary
131231342003
6
Senary
12014414303
8
Octal
465350337
10
Decimal
81121503
12
Duodecimal
23201393
16
Hexadecimal
4d5d0df
20
Vigesimal
15703f3
36
Base36
1capr3
md5
fc3165556d628eac3cde9f28f3c67554
sha1
1320db079f7f3d358f27dbebc7466a7777142b0e
sha256
dc4aee01f31be145297eecce4ddd845a03a664d20d84639e074884d1e6b4b079
sha512
b88f75b2c3e9ec4a33df62d013052f0252a3a22333d85c2c4d8aa5f8cc50e058cd560b02026dc9206fbbeb770c3b213df7cfa1f9e788ec9c307ab401889bc88f
ripemd-160
0f5051497b7143cd73e4268865797a4a1b70954a
Diameter
162243006
Circumference
509701435.74592
Area
2.0673873274484E+16
Volume
2.2361275638102E+24
Surface area
8.2695493097935E+16
Circumference
509701435.74592
Perimeter
324486012
Area
6580698248979009
Diagonal
114723129.74269
Surface area
39484189493874054
Volume
5.3383613274665E+23
Space diagonal
140506564.78235
Perimeter
243364509
Area
2.8495259291278E+15
Altitude
70253282.391176
Surface area
2.8495259291278E+15
Volume
6.2913191584592E+22
Height
38241043.247563