81750497 is an odd 8-digits composite number following 81750496
and preceding 81750498 . In scientific notation, it is written as 8.1750497 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 81626160 positive integers (up to 81750497) that are relatively prime to 81750497.
81750497 has 4 divisors, whose sum is 81874836
The reverse of 81750497 is 79405718
Previous prime number is 661
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million seven hundred fifty thousand four hundred ninety-seven
Scientific notation
8.1750497 × 10^7
Engineering notation
8.1750497 × 10^6
Prime Factorization
661 × 123677
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81750497
Product of the distinct prime numbers
The prime factorization of 81750497 is 661 × 123677.
Since it has a total of 2 prime factors.
9 , 1 , 6 , 35 , 564 , 999 , 1183 , 3632 , 36835 , 25623 , 857182 , 563785 , 9341750 , 1058685 , 31169405 , 66631630 , 635005833 , 971785688 , 7609583787 , 9428454065
n×2
163500994
n×3
245251491
n×4
327001988
n×5
408752485
n÷2
40875248.5
n÷3
27250165.666667
n÷3
20437624.25
n÷5
16350099.4
n2
6683143759747009
n3
5.4635032388177E+23
n4
4.4664410513445E+31
n5
3.6513377576862E+39
2 √n
9041.5981441336
3 √n
434.00706629111
4 √n
95.087318524257
5 √n
38.238256344074
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
-81750496
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 81750497 can be divided by 4 positive divisors.
The sum of these divisors (counting 81750497) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111110110100111100001
3
Ternary
12200211100121012
4
Quaternary
10313312213201
5
Quinary
131412003442
6
Senary
12040110305
8
Octal
467664741
10
Decimal
81750497
12
Duodecimal
23465395
16
Hexadecimal
4df69e1
20
Vigesimal
15aig4h
36
Base36
1co735
md5
60b5ad8f16e7964f13d901d68f3949ec
sha1
58ed48e76a7469d917120c11c5e81602f28ec066
sha256
a59079ca7ce6c95ce978d77df36e09d4f961fc508c2eea26236561927db10238
sha512
e1fd255726154c8b17d6868d409250a5943989dee57326b2f5074633585114845372e382f0bc15d0365027dd861ab102bee87f14c4af7213eed39ff2c19f38e3
ripemd-160
0ac1d2a78e9bf8f755a99fe9ae94aee6823fe8a0
Diameter
163500994
Circumference
513653521.60503
Area
2.0995715338506E+16
Volume
2.2885468850578E+24
Surface area
8.3982861354023E+16
Circumference
513653521.60503
Perimeter
327001988
Area
6683143759747009
Diagonal
115612661.58814
Surface area
40098862558482054
Volume
5.4635032388177E+23
Space diagonal
141596014.34801
Perimeter
245251491
Area
2.8938861365422E+15
Altitude
70798007.174004
Surface area
2.8938861365422E+15
Volume
6.4388003153377E+22
Height
38537553.862714