81872017 is an odd 8-digits composite number following 81872016
and preceding 81872018 . In scientific notation, it is written as 8.1872017 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 73319680 positive integers (up to 81872017) that are relatively prime to 81872017.
81872017 has 8 divisors, whose sum is 84801600
The reverse of 81872017 is 71027818
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million eight hundred seventy-two thousand seventeen
Scientific notation
8.1872017 × 10^7
Engineering notation
8.1872017 × 10^6
Prime Factorization
1207 × 29 × 2339
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81872017
Product of the distinct prime numbers
The prime factorization of 81872017 is 1207 × 29 × 2339.
Since it has a total of 3 prime factors.
7 , 2 , 32 , 48 , 861 , 273 , 2285 , 7799 , 76274 , 62818 , 10883 , 412645 , 714737 , 151275 , 74252281 , 69278804 , 979896223 , 889145111 , 8596295848 , 1056886844
n×2
163744034
n×3
245616051
n×4
327488068
n×5
409360085
n÷2
40936008.5
n÷3
27290672.333333
n÷3
20468004.25
n÷5
16374403.4
n2
6703027167648289
n3
5.4879035422116E+23
n4
4.4930573210231E+31
n5
3.6785566536878E+39
2 √n
9048.3156996206
3 √n
434.2220065859
4 √n
95.122635054022
5 √n
38.249617626648
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81872016
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81872017 can be divided by 8 positive divisors.
The sum of these divisors (counting 81872017) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000010100010010010001
3
Ternary
12201001112021221
4
Quaternary
10320110102101
5
Quinary
131424401032
6
Senary
12042445041
8
Octal
470242221
10
Decimal
81872017
12
Duodecimal
23503781
16
Hexadecimal
4e14491
20
Vigesimal
15be00h
36
Base36
1cqsup
md5
f50e59e6b8182e03fac41190ecdf5c14
sha1
602ad59e1c4450d13f687a5dd446e6262e68aea4
sha256
d300530c62017447fc59cff82759d9727f1f595a0d0ce4faf2dc41efd471aa2f
sha512
6171c8eca3c9ff9417b48384cd0283efe0d6abfffc779c57dcc238b339241065739880c65e85ef1671c50a7c661033a1d2320c29a4da4a9b76917566ba4168c0
ripemd-160
99d845ddad596644524b4c284b5d513492072ef7
Diameter
163744034
Circumference
514417054.28356
Area
2.1058180906697E+16
Volume
2.2987676602429E+24
Surface area
8.4232723626787E+16
Circumference
514417054.28356
Perimeter
327488068
Area
6703027167648289
Diagonal
115784516.82024
Surface area
40218163005889734
Volume
5.4879035422116E+23
Space diagonal
141806493.16214
Perimeter
245616051
Area
2.9024959047203E+15
Altitude
70903246.581071
Surface area
2.9024959047203E+15
Volume
6.4675563486592E+22
Height
38594838.94008