81799646 is an even 8-digits composite number following 81799645
and preceding 81799647 . In scientific notation, it is written as 8.1799646 × 10^7.
The sum of its digits is 50. It has a total of 4 prime factors and 16 positive divisors.
There are 39905184 positive integers (up to 81799646) that are relatively prime to 81799646.
81799646 has 16 divisors, whose sum is 125699904
The reverse of 81799646 is 64699718
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighty-one million seven hundred ninety-nine thousand six hundred forty-six
Scientific notation
8.1799646 × 10^7
Engineering notation
8.1799646 × 10^6
Prime Factorization
2 × 373 × 47 × 2333
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81799646
Product of the distinct prime numbers
The prime factorization of 81799646 is 2 × 373 × 47 × 2333.
Since it has a total of 4 prime factors.
9 , 9 , 100 , 45 , 558 , 56 , 6962 , 3707 , 48812 , 88170 , 464755 , 878426 , 200599 , 8502494 , 99561603 , 88514164 , 315526312 , 594481317 , 7838625349 , 9687905330
n×2
163599292
n×3
245398938
n×4
327198584
n×5
408998230
n÷2
40899823
n÷3
27266548.666667
n÷3
20449911.5
n÷5
16359929.2
n2
6691182085725316
n3
5.4733632593387E+23
n4
4.4771917704331E+31
n5
3.6623270189554E+39
2 √n
9044.315673394
3 √n
434.09402494671
4 √n
95.101607102057
5 √n
38.242853062959
1 , 2 , 47 , 94 , 373 , 746 , 2333 , 4666 , 17531 , 35062 , 109651 , 219302 , 870209 , 1740418 , 40899823 , 81799646
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
-81799645
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 81799646 can be divided by 16 positive divisors.
The sum of these divisors (counting 81799646) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100111000000010100111011110
3
Ternary
12200220212000112
4
Quaternary
10320002213132
5
Quinary
131420042041
6
Senary
12041130022
8
Octal
470024736
10
Decimal
81799646
12
Duodecimal
23489912
16
Hexadecimal
4e029de
20
Vigesimal
15b4j26
36
Base36
1cp90e
md5
8c6d80c225f6fd16260aeca4b0be1210
sha1
68136f9fb18ffb3b5d63bd346ba320a65fb71adb
sha256
7f19de92890cdf6f5285cfa5783e6321059d0710278432a1025769dc6bca2c5c
sha512
967785c11821f10c0d6c0709adb95119d52b234c9b759fc4fe0b0f9bd284aaa58411a9a8ec041c02b7cda72a3e120ecd2b1dfe7a006923ea4cfc449e50f46e32
ripemd-160
f618b6f2aca377971f6f8abe246ecf26a518d792
Diameter
163599292
Circumference
513962333.87969
Area
2.1020968484346E+16
Volume
2.2926770407956E+24
Surface area
8.4083873937385E+16
Circumference
513962333.87969
Perimeter
327198584
Area
6691182085725316
Diagonal
115682168.77052
Surface area
40147092514351896
Volume
5.4733632593387E+23
Space diagonal
141681142.91315
Perimeter
245398938
Area
2.8973668337927E+15
Altitude
70840571.456574
Surface area
2.8973668337927E+15
Volume
6.4504204609595E+22
Height
38560722.923506