16507981 is an odd 8-digits composite number following 16507980
and preceding 16507982 . In scientific notation, it is written as 1.6507981 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 14149692 positive integers (up to 16507981) that are relatively prime to 16507981.
16507981 has 4 divisors, whose sum is 18866272
The reverse of 16507981 is 18970561
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
sixteen million five hundred seven thousand nine hundred eighty-one
Scientific notation
1.6507981 × 10^7
Engineering notation
1.6507981 × 10^6
Prime Factorization
7 × 2358283
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
16507981
Product of the distinct prime numbers
The prime factorization of 16507981 is 7 × 2358283.
Since it has a total of 2 prime factors.
1 , 6 , 16 , 48 , 997 , 73 , 4305 , 1233 , 21469 , 49185 , 461181 , 461143 , 4854264 , 7980751 , 39370983 , 35500581 , 961985518 , 834136437 , 5012401920 , 4776450811
n×2
33015962
n×3
49523943
n×4
66031924
n×5
82539905
n÷2
8253990.5
n÷3
5502660.3333333
n÷3
4126995.25
n÷5
3301596.2
n2
272513436696361
n3
4.4986466352282E+21
n4
7.4263573180062E+28
n5
1.2259416550486E+36
2 √n
4063.0014767411
3 √n
254.62320874115
4 √n
63.741677705729
5 √n
27.767628611589
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
-16507980
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 16507981 can be divided by 4 positive divisors.
The sum of these divisors (counting 16507981) is 1, the average is 0.25.
Base
System
Value
2
Binary
111110111110010001001101
3
Ternary
1011001200200201
4
Quaternary
332332101031
5
Quinary
13211223411
6
Senary
1345453501
8
Octal
76762115
10
Decimal
16507981
12
Duodecimal
5641291
16
Hexadecimal
fbe44d
20
Vigesimal
5339j1
36
Base36
9ttn1
md5
2f7d8e7689c65caed532676c4ca8bdfa
sha1
77ea3d017bf671fae5fc437873da7d0efcece51e
sha256
a3f61dc2755306f1178e1620e4116b13de3dd87f597710d8e6ab4627f4198e08
sha512
cf119a3d6ad9f4c0c75272d5c43a61f54d794af4f68fc69bd74822e8be5baa682ec47f5a99f9461c9bdca5226a64b67126513d3cb674983696db89357e184c04
ripemd-160
46c998d11fc0486be1bedeaed9dd6ddde7418094
Diameter
33015962
Circumference
103722703.6704
Area
8.5612621072979E+14
Volume
1.8843886960439E+22
Surface area
3.4245048429192E+15
Circumference
103722703.6704
Perimeter
66031924
Area
272513436696361
Diagonal
23345810.617597
Surface area
1635080620178166
Volume
4.4986466352282E+21
Space diagonal
28592661.822382
Perimeter
49523943
Area
1.1800177952583E+14
Altitude
14296330.911191
Surface area
1.1800177952583E+14
Volume
5.3017059032199E+20
Height
7781936.8725325