81303609 is an odd 8-digits composite number following 81303608
and preceding 81303610 . In scientific notation, it is written as 8.1303609 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 53555712 positive integers (up to 81303609) that are relatively prime to 81303609.
81303609 has 16 divisors, whose sum is 109706688
The reverse of 81303609 is 90630318
Previous prime number is 337
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
eighty-one million three hundred three thousand six hundred nine
Scientific notation
8.1303609 × 10^7
Engineering notation
8.1303609 × 10^6
Prime Factorization
3 × 137 × 337 × 587
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81303609
Product of the distinct prime numbers
The prime factorization of 81303609 is 3 × 137 × 337 × 587.
Since it has a total of 4 prime factors.
8 , 4 , 63 , 96 , 353 , 52 , 3977 , 3937 , 89649 , 84525 , 853951 , 762516 , 7604422 , 9813440 , 28314733 , 72379016 , 919690993 , 534691000 , 4004695453 , 3719240883
n×2
162607218
n×3
243910827
n×4
325214436
n×5
406518045
n÷2
40651804.5
n÷3
27101203
n÷3
20325902.25
n÷5
16260721.8
n2
6610276836424881
n3
5.3743936329045E+23
n4
4.3695759854175E+31
n5
3.5526229741418E+39
2 √n
9016.8513905908
3 √n
433.21478959882
4 √n
94.957102896997
5 √n
38.196358847276
1 , 3 , 137 , 337 , 411 , 587 , 1011 , 1761 , 46169 , 80419 , 138507 , 197819 , 241257 , 593457 , 27101203 , 81303609
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81303608
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81303609 can be divided by 16 positive divisors.
The sum of these divisors (counting 81303609) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110001001100000111001
3
Ternary
12122222122120210
4
Quaternary
10312021200321
5
Quinary
131303203414
6
Senary
12022341333
8
Octal
466114071
10
Decimal
81303609
12
Duodecimal
2328a849
16
Hexadecimal
4d89839
20
Vigesimal
1582j09
36
Base36
1cem9l
md5
771d989bab304801fe96160c46915cb2
sha1
cc51211ee4a8657ecf4aeff4d4fddc13f92f05f0
sha256
6f152f89c478a29ca320390d53e0fb48fee002de036cbafe2bd1b243f7353492
sha512
0753a6bedfddbca33a4735b994f453790b5a12312a494356d732a5fdba0820be93f5663fb1ed82e36d88e57c91e8ef2122167bb901cf9c1a913851afbe664ce3
ripemd-160
a2226be21913ac5fed9216649d904456a7edc836
Diameter
162607218
Circumference
510845641.48947
Area
2.0766797147507E+16
Volume
2.2512207406177E+24
Surface area
8.3067188590029E+16
Circumference
510845641.48947
Perimeter
325214436
Area
6610276836424881
Diagonal
114980666.51768
Surface area
39661661018549286
Volume
5.3743936329045E+23
Space diagonal
140821981.62671
Perimeter
243910827
Area
2.8623338331959E+15
Altitude
70410990.813357
Surface area
2.8623338331959E+15
Volume
6.3337836376542E+22
Height
38326888.839226