81506056 is an even 8-digits composite number following 81506055
and preceding 81506057 . In scientific notation, it is written as 8.1506056 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 16 positive divisors.
There are 40723200 positive integers (up to 81506056) that are relatively prime to 81506056.
81506056 has 16 divisors, whose sum is 152935740
The reverse of 81506056 is 65060518
Previous prime number is 1801
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million five hundred six thousand fifty-six
Scientific notation
8.1506056 × 10^7
Engineering notation
8.1506056 × 10^6
Prime Factorization
2 × 2 × 2 × 1801 × 5657
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20376514
Product of the distinct prime numbers
The prime factorization of 81506056 is 2 × 2 × 2 × 1801 × 5657.
Since it has a total of 5 prime factors.
6 , 8 , 58 , 47 , 425 , 332 , 6742 , 4389 , 88038 , 56247 , 206222 , 334045 , 5531037 , 4312449 , 90863567 , 50985466 , 703737445 , 670734610 , 596704045 , 9266918975
n×2
163012112
n×3
244518168
n×4
326024224
n×5
407530280
n÷2
40753028
n÷3
27168685.333333
n÷3
20376514
n÷5
16301211.2
n2
6643237164675136
n3
5.4146406036529E+23
n4
4.4132600026121E+31
n5
3.5970741691546E+39
2 √n
9028.0704472218
3 √n
433.57406164196
4 √n
95.016158874277
5 √n
38.215361811586
1 , 2 , 4 , 8 , 1801 , 3602 , 5657 , 7204 , 11314 , 14408 , 22628 , 45256 , 10188257 , 20376514 , 40753028 , 81506056
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81506055
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81506056 can be divided by 16 positive divisors.
The sum of these divisors (counting 81506056) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110110111010111100001000
3
Ternary
12200100221021211
4
Quaternary
10312322330020
5
Quinary
131331143211
6
Senary
12030542504
8
Octal
466727410
10
Decimal
81506056
12
Duodecimal
23367a34
16
Hexadecimal
4dbaf08
20
Vigesimal
159852g
36
Base36
1ciyh4
md5
d3e6639724b278c63ea631b85521fb8f
sha1
21f94476ccdba0699519be290c3fc1d7b0e9d5fb
sha256
b21701b710fd24410f8a20598e47474e51ec3bf21f92c5bf8248468a90b2b430
sha512
6a2f252eea0ee02beea280ce7097abbd2ff09be842a69579c2e803adf7110b65620aff4f89e419ad10e2eff087e6e860b300ee7bede72bfceae7a08fccceb836
ripemd-160
539b948141748e0015dd3794a734ff806e1ee114
Diameter
163012112
Circumference
512117653.50536
Area
2.0870345072598E+16
Volume
2.268079352302E+24
Surface area
8.3481380290392E+16
Circumference
512117653.50536
Perimeter
326024224
Area
6643237164675136
Diagonal
115266969.81074
Surface area
39859422988050816
Volume
5.4146406036529E+23
Space diagonal
141172630.11655
Perimeter
244518168
Area
2.8766060739868E+15
Altitude
70586315.058277
Surface area
2.8766060739868E+15
Volume
6.3812151475517E+22
Height
38422323.270247