81489241 is an odd 8-digits prime number following 81489240
and preceding 81489242 . In scientific notation, it is written as 8.1489241 × 10^7.
The sum of its digits is 37. It has a total of 1 prime factors and 2 positive divisors.
There are 81489240 positive integers (up to 81489241) that are relatively prime to 81489241.
81489241 has 2 divisors, whose sum is 81489242
The reverse of 81489241 is 14298418
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty-one million four hundred eighty-nine thousand two hundred forty-one
Scientific notation
8.1489241 × 10^7
Engineering notation
8.1489241 × 10^6
Prime Factorization
81489241
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81489241
Product of the distinct prime numbers
The prime factorization of 81489241 is 81489241.
Since it has a total of 1 prime factors.
5 , 8 , 18 , 53 , 748 , 195 , 4200 , 8121 , 91496 , 78936 , 496329 , 988255 , 3076288 , 2215155 , 93939143 , 13300132 , 72760870 , 40948549 , 9728766017 , 1318205695
n×2
162978482
n×3
244467723
n×4
325956964
n×5
407446205
n÷2
40744620.5
n÷3
27163080.333333
n÷3
20372310.25
n÷5
16297848.2
n2
6640496398756081
n3
5.4112901139787E+23
n4
4.4096192421892E+31
n5
3.59336525145E+39
2 √n
9027.1391370688
3 √n
433.54424361527
4 √n
95.011257949092
5 √n
38.213784887429
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81489242
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40744621
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9027.1391924574
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999754569
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81489241 can be divided by 2 positive divisors.
The sum of these divisors (counting 81489241) is 81489242, the average is 40744621.
Base
System
Value
2
Binary
100110110110110110101011001
3
Ternary
12200100002020001
4
Quaternary
10312312311121
5
Quinary
131330123431
6
Senary
12030333001
8
Octal
466666531
10
Decimal
81489241
12
Duodecimal
2335a161
16
Hexadecimal
4db6d59
20
Vigesimal
1596321
36
Base36
1cili1
md5
b2ada6a1c2df56b271df8097f6b75663
sha1
a358c00420c0c5e4880875ec77667a33abde32fc
sha256
eebd831bdbacc417903badc88de5b4a0bf93c08d41b3b53c999cb3ace85b40ec
sha512
b683e968e8439629a1a8607a35829b0df17b8a55c2f53909432d4bbdba25b01663a17801ca0124386e20f732d624d27078e60548707968a35ced24c73074f45d
ripemd-160
e640c964a44907048ae325ba385640f5a0d2ade5
Diameter
162978482
Circumference
512012001.74442
Area
2.0861734702522E+16
Volume
2.2666759024691E+24
Surface area
8.3446938810086E+16
Circumference
512012001.74442
Perimeter
325956964
Area
6640496398756081
Diagonal
115243189.80969
Surface area
39842978392536486
Volume
5.4112901139787E+23
Space diagonal
141143505.68222
Perimeter
244467723
Area
2.8754192875309E+15
Altitude
70571752.841112
Surface area
2.8754192875309E+15
Volume
6.3772665576034E+22
Height
38414396.60323