81640277 is an odd 8-digits composite number following 81640276
and preceding 81640278 . In scientific notation, it is written as 8.1640277 × 10^7.
The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors.
There are 81597516 positive integers (up to 81640277) that are relatively prime to 81640277.
81640277 has 4 divisors, whose sum is 81683040
The reverse of 81640277 is 77204618
Previous prime number is 2003
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
eighty-one million six hundred forty thousand two hundred seventy-seven
Scientific notation
8.1640277 × 10^7
Engineering notation
8.1640277 × 10^6
Prime Factorization
2003 × 40759
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81640277
Product of the distinct prime numbers
The prime factorization of 81640277 is 2003 × 40759.
Since it has a total of 2 prime factors.
9 , 6 , 87 , 91 , 374 , 558 , 3259 , 8455 , 43351 , 88309 , 871850 , 56653 , 826407 , 7776053 , 69597125 , 59209602 , 311823887 , 185215260 , 789520968 , 173650258
n×2
163280554
n×3
244920831
n×4
326561108
n×5
408201385
n÷2
40820138.5
n÷3
27213425.666667
n÷3
20410069.25
n÷5
16328055.4
n2
6665134828636729
n3
5.4414345365225E+23
n4
4.4424022283906E+31
n5
3.6267894847123E+39
2 √n
9035.5009268994
3 √n
433.81192874818
4 √n
95.055251969049
5 √n
38.22793984313
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
-81640276
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 81640277 can be divided by 4 positive divisors.
The sum of these divisors (counting 81640277) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111011011101101010101
3
Ternary
12200121202101222
4
Quaternary
10313123231111
5
Quinary
131344442102
6
Senary
12033500125
8
Octal
467335525
10
Decimal
81640277
12
Duodecimal
23411645
16
Hexadecimal
4ddbb55
20
Vigesimal
15a50dh
36
Base36
1clu1h
md5
78eb3b71ea3310a68636d1c09d7a9edc
sha1
cbdf2875c29667f2c7da932e79127d36a7462293
sha256
fd3d892b1a4f3b4f21c9cddc801600ad365653255716cca339bbf1d0d8dc2ae8
sha512
703dd8e691f673ea630aee26fac1db3bf85232124593003494af1b988d115e2f87dff1e1d676c0af975dc2ab00cb1cbf8a387fc2d79be3de2158ead7475b53e3
ripemd-160
abd5c75beda9ad40572f4dca04c5ff5bf5a8a97a
Diameter
163280554
Circumference
512960988.92047
Area
2.0939138612831E+16
Volume
2.2793027686572E+24
Surface area
8.3756554451322E+16
Circumference
512960988.92047
Perimeter
326561108
Area
6665134828636729
Diagonal
115456786.9693
Surface area
39990808971820374
Volume
5.4414345365225E+23
Space diagonal
141405107.708
Perimeter
244920831
Area
2.8860880406239E+15
Altitude
70702553.853998
Surface area
2.8860880406239E+15
Volume
6.4127921002629E+22
Height
38485595.656432