81799418 is an even 8-digits composite number following 81799417
and preceding 81799419 . In scientific notation, it is written as 8.1799418 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 40628700 positive integers (up to 81799418) that are relatively prime to 81799418.
81799418 has 8 divisors, whose sum is 123512160
The reverse of 81799418 is 81499718
Previous prime number is 151
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-one million seven hundred ninety-nine thousand four hundred eighteen
Scientific notation
8.1799418 × 10^7
Engineering notation
8.1799418 × 10^6
Prime Factorization
2 × 151 × 270859
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81799418
Product of the distinct prime numbers
The prime factorization of 81799418 is 2 × 151 × 270859.
Since it has a total of 3 prime factors.
4 , 10 , 77 , 13 , 667 , 664 , 9138 , 5089 , 29382 , 1303 , 31359 , 487955 , 2282803 , 7469019 , 30082271 , 26063640 , 418767197 , 867292171 , 8105463830 , 5401543034
n×2
163598836
n×3
245398254
n×4
327197672
n×5
408997090
n÷2
40899709
n÷3
27266472.666667
n÷3
20449854.5
n÷5
16359883.6
n2
6691144785138724
n3
5.4733174917808E+23
n4
4.4771418535689E+31
n5
3.6622759792538E+39
2 √n
9044.3030687831
3 √n
434.09362162985
4 √n
95.101540832855
5 √n
38.242831744088
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
-81799417
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 81799418 can be divided by 8 positive divisors.
The sum of these divisors (counting 81799418) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000000010100011111010
3
Ternary
12200220211201002
4
Quaternary
10320002203322
5
Quinary
131420040133
6
Senary
12041125002
8
Octal
470024372
10
Decimal
81799418
12
Duodecimal
23489762
16
Hexadecimal
4e028fa
20
Vigesimal
15b4iai
36
Base36
1cp8u2
md5
1442079397752bb56338fd6dbd409cc1
sha1
72adeffc30ba450c58c67b5fccf4c60d4057addc
sha256
65fd544bbdfed21d057cb2b994064d6e9837431631421b4bea78379c95caae93
sha512
15539dd531690d0d228de4be47bfa4127d239c492897f5ba8b021f3e852196330d057c99840a661772aee8e97f94c000256c231cc4fa4b67b101229fa5b46b35
ripemd-160
e92bf9f65cb95bcda9c568fbf5aa6fb5cc4c2f5a
Diameter
163598836
Circumference
513960901.31344
Area
2.1020851301097E+16
Volume
2.2926578697258E+24
Surface area
8.408340520439E+16
Circumference
513960901.31344
Perimeter
327197672
Area
6691144785138724
Diagonal
115681846.32983
Surface area
40146868710832344
Volume
5.4733174917808E+23
Space diagonal
141680748.00556
Perimeter
245398254
Area
2.897350682165E+15
Altitude
70840374.002782
Surface area
2.897350682165E+15
Volume
6.4503665233753E+22
Height
38560615.443275