16491391 is an odd 8-digits composite number following 16491390
and preceding 16491392 . In scientific notation, it is written as 1.6491391 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 13519968 positive integers (up to 16491391) that are relatively prime to 16491391.
16491391 has 8 divisors, whose sum is 17560800
The reverse of 16491391 is 19319461
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
sixteen million four hundred ninety-one thousand three hundred ninety-one
Scientific notation
1.6491391 × 10^7
Engineering notation
1.6491391 × 10^6
Prime Factorization
49 × 23 × 14633
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
16491391
Product of the distinct prime numbers
The prime factorization of 16491391 is 49 × 23 × 14633.
Since it has a total of 3 prime factors.
4 , 5 , 82 , 97 , 212 , 755 , 4942 , 8833 , 4679 , 51154 , 479161 , 265721 , 6285384 , 8494923 , 8598252 , 30383977 , 486236418 , 525574291 , 343977317 , 6682615887
n×2
32982782
n×3
49474173
n×4
65965564
n×5
82456955
n÷2
8245695.5
n÷3
5497130.3333333
n÷3
4122847.75
n÷5
3298278.2
n2
271965977114881
n3
4.4850972672986E+21
n4
7.3965492708052E+28
n5
1.2197938607561E+36
2 √n
4060.9593694101
3 √n
254.53788405515
4 √n
63.725657073193
5 √n
27.762045248586
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
-16491390
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 16491391 can be divided by 8 positive divisors.
The sum of these divisors (counting 16491391) is 1, the average is 0.125.
Base
System
Value
2
Binary
111110111010001101111111
3
Ternary
1011000211221021
4
Quaternary
332322031333
5
Quinary
13210211031
6
Senary
1345245011
8
Octal
76721577
10
Decimal
16491391
12
Duodecimal
5633767
16
Hexadecimal
fba37f
20
Vigesimal
53189b
36
Base36
9tgu7
md5
6f2cf60e2b91dfbe459e410df55356fa
sha1
67efa4a2bee9b0b25a92d3d3c5fc80031d21801b
sha256
9c3049780b017fbd5b7ea4a4abc46d07e6f241796f71f9ffb482700f87f944b6
sha512
016ade6455a5d5d1c94f0558be6ca8c4cc2ba1e3fbca297631333c31b7bea53297a1996daaf22f5236036c5889b5cb414c7d2a5766a7c1fb0866439a53b05598
ripemd-160
4bd13ef086a3eae3f9ed4d70eeb43d1aeef91429
Diameter
32982782
Circumference
103618465.62615
Area
8.5440631573048E+14
Volume
1.8787131500774E+22
Surface area
3.4176252629219E+15
Circumference
103618465.62615
Perimeter
65965564
Area
271965977114881
Diagonal
23322348.814598
Surface area
1631795862689286
Volume
4.4850972672986E+21
Space diagonal
28563927.099484
Perimeter
49474173
Area
1.1776472257327E+14
Altitude
14281963.549742
Surface area
1.1776472257327E+14
Volume
5.2857378199801E+20
Height
7774116.2715325