81277249 is an odd 8-digits composite number following 81277248
and preceding 81277250 . In scientific notation, it is written as 8.1277249 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 79743664 positive integers (up to 81277249) that are relatively prime to 81277249.
81277249 has 4 divisors, whose sum is 82810836
The reverse of 81277249 is 94277218
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million two hundred seventy-seven thousand two hundred forty-nine
Scientific notation
8.1277249 × 10^7
Engineering notation
8.1277249 × 10^6
Prime Factorization
53 × 1533533
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81277249
Product of the distinct prime numbers
The prime factorization of 81277249 is 53 × 1533533.
Since it has a total of 2 prime factors.
5 , 4 , 21 , 81 , 224 , 43 , 6540 , 8452 , 31157 , 21472 , 202943 , 915136 , 7822538 , 715048 , 41831723 , 52961462 , 42184095 , 784532098 , 8013595591 , 5503774636
n×2
162554498
n×3
243831747
n×4
325108996
n×5
406386245
n÷2
40638624.5
n÷3
27092416.333333
n÷3
20319312.25
n÷5
16255449.8
n2
6605991205008001
n3
5.3691679206125E+23
n4
4.3639119800643E+31
n5
3.5468676061777E+39
2 √n
9015.3895645169
3 √n
433.16796602665
4 √n
94.949405287853
5 √n
38.193881745379
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
-81277248
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 81277249 can be divided by 4 positive divisors.
The sum of these divisors (counting 81277249) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110000011000101000001
3
Ternary
12122221022102111
4
Quaternary
10312003011001
5
Quinary
131301332444
6
Senary
12022015321
8
Octal
466030501
10
Decimal
81277249
12
Duodecimal
23277541
16
Hexadecimal
4d83141
20
Vigesimal
157jd29
36
Base36
1ce1xd
md5
fc0595a914e3b03943bc97154d3a6032
sha1
477f87cea4c918f1bc5f58b0e705736482052687
sha256
c47667fed45389a02276f7ed5bd033f7bcdd2932a32094e8375c066c78d712d2
sha512
b84c59339b216be854c7b3ff9d20c95b19c57c6a781185c5405d3b496f7977ed354b3da70855c257e65eddc942aa8d6fb34c9b7cb149d5bee585ef7af0cd30a2
ripemd-160
4a419b2fab1c32e362e111ff8dc81acb6b711bc5
Diameter
162554498
Circumference
510680016.72478
Area
2.0753333439332E+16
Volume
2.2490317993715E+24
Surface area
8.3013333757328E+16
Circumference
510680016.72478
Perimeter
325108996
Area
6605991205008001
Diagonal
114943387.84818
Surface area
39635947230048006
Volume
5.3691679206125E+23
Space diagonal
140776324.76743
Perimeter
243831747
Area
2.8604781003568E+15
Altitude
70388162.383713
Surface area
2.8604781003568E+15
Volume
6.3276250766572E+22
Height
38314462.616058