81072017 is an odd 8-digits composite number following 81072016
and preceding 81072018 . In scientific notation, it is written as 8.1072017 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 74835696 positive integers (up to 81072017) that are relatively prime to 81072017.
81072017 has 4 divisors, whose sum is 87308340
The reverse of 81072017 is 71027018
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
eighty-one million seventy-two thousand seventeen
Scientific notation
8.1072017 × 10^7
Engineering notation
8.1072017 × 10^6
Prime Factorization
13 × 6236309
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81072017
Product of the distinct prime numbers
The prime factorization of 81072017 is 13 × 6236309.
Since it has a total of 2 prime factors.
9 , 7 , 41 , 76 , 307 , 74 , 5948 , 6484 , 99468 , 47986 , 17414 , 68520 , 9763989 , 7885486 , 22629860 , 48377295 , 740672770 , 174235570 , 8584306672 , 4010838977
n×2
162144034
n×3
243216051
n×4
324288068
n×5
405360085
n÷2
40536008.5
n÷3
27024005.666667
n÷3
20268004.25
n÷5
16214403.4
n2
6572671940448289
n3
5.3285977129145E+23
n4
4.3200016436756E+31
n5
3.502312466961E+39
2 √n
9004.0000555309
3 √n
432.80306333911
4 √n
94.88940960682
5 √n
38.174573670581
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
-81072016
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 81072017 can be divided by 4 positive divisors.
The sum of these divisors (counting 81072017) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110101010000111110010001
3
Ternary
12122112212220022
4
Quaternary
10311100332101
5
Quinary
131223301032
6
Senary
12013353225
8
Octal
465207621
10
Decimal
81072017
12
Duodecimal
23198815
16
Hexadecimal
4d50f91
20
Vigesimal
156e00h
36
Base36
1c9nkh
md5
1586875d5c54d2daa2daec0b5efd08c1
sha1
a0a40b97037e5ba724e81572c73a149ddac00b81
sha256
a550093c7228cff11f2d0a59c94ee2ee1a346295fba3f68dd549cae195e0a876
sha512
59298d330f917ab11694fe707957091583d44b747735ac45c0cc54483aaaefd04e4b535e3dafb3066bd1e879de101f3f38fc05c8e5819ed3ddd235810f58fd5a
ripemd-160
4ab273c08729c5339b3e81fbf9131a0a49f7e224
Diameter
162144034
Circumference
509390506.03781
Area
2.0648657882568E+16
Volume
2.2320377905103E+24
Surface area
8.2594631530272E+16
Circumference
509390506.03781
Perimeter
324288068
Area
6572671940448289
Diagonal
114653145.97034
Surface area
39436031642689734
Volume
5.3285977129145E+23
Space diagonal
140420852.51609
Perimeter
243216051
Area
2.8460504355847E+15
Altitude
70210426.258044
Surface area
2.8460504355847E+15
Volume
6.2798126283616E+22
Height
38217715.323447