16561389 is an odd 8-digits composite number following 16561388
and preceding 16561390 . In scientific notation, it is written as 1.6561389 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 10046400 positive integers (up to 16561389) that are relatively prime to 16561389.
16561389 has 8 divisors, whose sum is 17228160
The reverse of 16561389 is 98316561
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
sixteen million five hundred sixty-one thousand three hundred eighty-nine
Scientific notation
1.6561389 × 10^7
Engineering notation
1.6561389 × 10^6
Prime Factorization
39 × 71 × 5981
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
16561389
Product of the distinct prime numbers
The prime factorization of 16561389 is 39 × 71 × 5981.
Since it has a total of 3 prime factors.
2 , 10 , 38 , 30 , 605 , 374 , 845 , 2552 , 21760 , 7866 , 747618 , 128307 , 6417466 , 6401237 , 61451113 , 57596689 , 870765736 , 762851614 , 8794206099 , 1331626556
n×2
33122778
n×3
49684167
n×4
66245556
n×5
82806945
n÷2
8280694.5
n÷3
5520463
n÷3
4140347.25
n÷5
3312277.8
n2
274279605609321
n3
4.5424512432625E+21
n4
7.5229302053205E+28
n5
1.2459017355016E+36
2 √n
4069.5686503609
3 √n
254.89750590656
4 √n
63.793170875579
5 √n
27.785572635613
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
-16561388
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 16561389 can be divided by 8 positive divisors.
The sum of these divisors (counting 16561389) is 1, the average is 0.125.
Base
System
Value
2
Binary
111111001011010011101101
3
Ternary
1011011101221210
4
Quaternary
333023103231
5
Quinary
13214431024
6
Senary
1350545033
8
Octal
77132355
10
Decimal
16561389
12
Duodecimal
5668179
16
Hexadecimal
fcb4ed
20
Vigesimal
53a399
36
Base36
9uyul
md5
ef02f553a5e9cb49774f43d8655ad7eb
sha1
9c76868f69b3f019c9f7c35508e78cdb41e32a81
sha256
b2320627044f40eb67899a6be643409857018eb9f45121edcb5ad3d121489876
sha512
63804f7377eb9c18e85d7e7bed48829edc7434e99db786a9bee06d9a64fc2e6190d9675a12bf7f2bdd36080ef2361dad2508325ba1e929a931afbfb7f3357a89
ripemd-160
db39056bccb03192fba55b83a83a02ed353ba708
Diameter
33122778
Circumference
104058276.03129
Area
8.6167479401175E+14
Volume
1.9027375273498E+22
Surface area
3.446699176047E+15
Circumference
104058276.03129
Perimeter
66245556
Area
274279605609321
Diagonal
23421340.935537
Surface area
1645677633655926
Volume
4.5424512432625E+21
Space diagonal
28685167.191912
Perimeter
49684167
Area
1.1876655309882E+14
Altitude
14342583.595956
Surface area
1.1876655309882E+14
Volume
5.353330128867E+20
Height
7807113.6451789