16561321 is an odd 8-digits composite number following 16561320
and preceding 16561322 . In scientific notation, it is written as 1.6561321 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 13865040 positive integers (up to 16561321) that are relatively prime to 16561321.
16561321 has 8 divisors, whose sum is 19367744
The reverse of 16561321 is 12316561
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
sixteen million five hundred sixty-one thousand three hundred twenty-one
Scientific notation
1.6561321 × 10^7
Engineering notation
1.6561321 × 10^6
Prime Factorization
7 × 43 × 55021
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
16561321
Product of the distinct prime numbers
The prime factorization of 16561321 is 7 × 43 × 55021.
Since it has a total of 3 prime factors.
8 , 8 , 76 , 69 , 325 , 853 , 6817 , 7296 , 64136 , 32244 , 626314 , 500604 , 7856108 , 9899391 , 87725344 , 60552052 , 581614850 , 725736543 , 9873849748 , 820841415
n×2
33122642
n×3
49683963
n×4
66245284
n×5
82806605
n÷2
8280660.5
n÷3
5520440.3333333
n÷3
4140330.25
n÷5
3312264.2
n2
274277353265041
n3
4.5423952904527E+21
n4
7.5228066514076E+28
n5
1.245876157749E+36
2 √n
4069.5602956585
3 √n
254.89715704182
4 √n
63.793105392813
5 √n
27.78554981842
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
-16561320
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 16561321 can be divided by 8 positive divisors.
The sum of these divisors (counting 16561321) is 1, the average is 0.125.
Base
System
Value
2
Binary
111111001011010010101001
3
Ternary
1011011101212021
4
Quaternary
333023102221
5
Quinary
13214430241
6
Senary
1350544441
8
Octal
77132251
10
Decimal
16561321
12
Duodecimal
5668121
16
Hexadecimal
fcb4a9
20
Vigesimal
53a361
36
Base36
9uysp
md5
25ba82d1b2e059becd44792a141c857c
sha1
7340084d4dbf4d3cc6e6b8ff9dc7ddec168ee3ed
sha256
ade42d0ba2906c4b59ebb225a061a7ba53f224d1f64d32e6531168980cddb599
sha512
e9f946930d9d5328af20fb8baec34e13404cfd125d12adeb79c0ebfc0aeea4dd0740071918a852c86537ee70c77f1b8040c7006c76e1230d1c4613669a722f5c
ripemd-160
2af3dc086e3f76f1625473859fe989f36903de3d
Diameter
33122642
Circumference
104057848.77468
Area
8.6166771806351E+14
Volume
1.9027140898916E+22
Surface area
3.446670872254E+15
Circumference
104057848.77468
Perimeter
66245284
Area
274277353265041
Diagonal
23421244.769014
Surface area
1645664119590246
Volume
4.5423952904527E+21
Space diagonal
28685049.412457
Perimeter
49683963
Area
1.1876557780514E+14
Altitude
14342524.706229
Surface area
1.1876557780514E+14
Volume
5.3532641878483E+20
Height
7807081.5896715