81648727 is an odd 8-digits prime number following 81648726
and preceding 81648728 . In scientific notation, it is written as 8.1648727 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 81648726 positive integers (up to 81648727) that are relatively prime to 81648727.
81648727 has 2 divisors, whose sum is 81648728
The reverse of 81648727 is 72784618
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 43 Digital Root 7
Name
eighty-one million six hundred forty-eight thousand seven hundred twenty-seven
Scientific notation
8.1648727 × 10^7
Engineering notation
8.1648727 × 10^6
Prime Factorization
81648727
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
81648727 Product of the distinct prime numbers
The prime factorization of 81648727 is 81648727.
Since it has a total of 1 prime factors.
5 , 8 , 28 , 72 , 318 , 26 , 287 , 7844 , 18790 , 36713 , 703742 , 378626 , 5126333 , 8052467 , 53377940 , 39386169 , 158053622 , 745638876 , 4829167600 , 3898668469
n×2
163297454
n×3
244946181
n×4
326594908
n×5
408243635
n÷2
40824363.5
n÷3
27216242.333333
n÷3
20412181.75
n÷5
16329745.4
n2
6666514620720529
n3
5.4431243230872E+23
n4
4.4442417188281E+31
n5
3.628666788226E+39
2 √n9035.9685147747
3 √n433.82689515312
4 √n95.057711495568
5 √n38.228731150388
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
81648728 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
40824364 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9035.9685701091 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999755048 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81648727 can be divided by 2 positive divisors.
The sum of these divisors (counting 81648727) is 81648728, the average is 40824364.
Base
System
Value
2
Binary
100110111011101110001010111
3
Ternary
12200122011222221
4
Quaternary
10313131301113
5
Quinary
131400224402
6
Senary
12034003211
8
Octal
467356127
10
Decimal
81648727
12
Duodecimal
23416507
16
Hexadecimal
4dddc57
20
Vigesimal
15a61g7
36
Base36
1cm0k7
md5
b2d81305ec20c4209ddd94afde605400
sha1
e66813528d65d72e7fa694fa1c3f14e89ef41b67
sha256
58161eedd88eca3dc3a69d4f272e0d0aaf4b9afc45e8676c716a71d0b085e862
sha512
e7af2f3bf1b276759bb285c2daaa8e654fea1d9348c2d0ead95f5f496db560d936d7579d1442f64b9a5b0d8f95a29e8d9b57a8c8aadfd97e15be020787f27ffd
ripemd-160
20dc44c86782f962f7b28c6216eb25f539c6cb3c
Diameter
163297454
Circumference
513014081.83632
Area
2.0943473357505E+16
Volume
2.2800105847982E+24
Surface area
8.3773893430018E+16
Circumference
513014081.83632
Perimeter
326594908
Area
6666514620720529
Diagonal
115468737.0739
Surface area
39999087724323174
Volume
5.4431243230872E+23
Space diagonal
141419743.53732
Perimeter
244946181
Area
2.8866855081222E+15
Altitude
70709871.76866
Surface area
2.8866855081222E+15
Volume
6.4147835328273E+22
Height
38489579.024633