81489295 is an odd 8-digits composite number following 81489294
and preceding 81489296 . In scientific notation, it is written as 8.1489295 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 65191432 positive integers (up to 81489295) that are relatively prime to 81489295.
81489295 has 4 divisors, whose sum is 97787160
The reverse of 81489295 is 59298418
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
eighty-one million four hundred eighty-nine thousand two hundred ninety-five
Scientific notation
8.1489295 × 10^7
Engineering notation
8.1489295 × 10^6
Prime Factorization
5 × 16297859
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81489295
Product of the distinct prime numbers
The prime factorization of 81489295 is 5 × 16297859.
Since it has a total of 2 prime factors.
1 , 2 , 27 , 14 , 96 , 547 , 243 , 7586 , 10819 , 67100 , 102115 , 686329 , 1801445 , 1057704 , 89160740 , 44234869 , 365163406 , 671093736 , 3562108618 , 9617989964
n×2
162978590
n×3
244467885
n×4
325957180
n×5
407446475
n÷2
40744647.5
n÷3
27163098.333333
n÷3
20372323.75
n÷5
16297859
n2
6640505199597025
n3
5.41130087159E+23
n4
4.4096309305875E+31
n5
3.5933771574377E+39
2 √n
9027.1421280492
3 √n
433.54433937999
4 √n
95.011273689227
5 √n
38.213789952009
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
-81489294
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 81489295 can be divided by 4 positive divisors.
The sum of these divisors (counting 81489295) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110110110110110001111
3
Ternary
12200100002022001
4
Quaternary
10312312312033
5
Quinary
131330124140
6
Senary
12030333131
8
Octal
466666617
10
Decimal
81489295
12
Duodecimal
2335a1a7
16
Hexadecimal
4db6d8f
20
Vigesimal
159634f
36
Base36
1ciljj
md5
a92e484a11c0559c1db74625aab4db11
sha1
f8156079fae19f96f0bf08abcb8bb0f344987074
sha256
d2b41795975aaad991f1b4e3d9b333042c0223233935b15195b27db57779cbd5
sha512
42bd8f2e0ce4898df74d8f6abe9de0b3d06c86b6e7d18975293a3bcfee783096607305ad9a8bd2ed2f9cde14a7fb5cc0afe32f8cb29570376e1e347fd9bf6b3b
ripemd-160
a13fc914c4f6d2c80409523a7becfdf7575d90a0
Diameter
162978590
Circumference
512012341.03642
Area
2.0861762351179E+16
Volume
2.2666804086068E+24
Surface area
8.3447049404715E+16
Circumference
512012341.03642
Perimeter
325957180
Area
6640505199597025
Diagonal
115243266.17722
Surface area
39843031197582150
Volume
5.41130087159E+23
Space diagonal
141143599.21297
Perimeter
244467885
Area
2.8754230984068E+15
Altitude
70571799.606484
Surface area
2.8754230984068E+15
Volume
6.3772792355699E+22
Height
38414422.059074