15996721 is an odd 8-digits composite number following 15996720
and preceding 15996722 . In scientific notation, it is written as 1.5996721 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 14727312 positive integers (up to 15996721) that are relatively prime to 15996721.
15996721 has 8 divisors, whose sum is 17272640
The reverse of 15996721 is 12769951
Previous prime number is 439
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
fifteen million nine hundred ninety-six thousand seven hundred twenty-one
Scientific notation
1.5996721 × 10^7
Engineering notation
1.5996721 × 10^6
Prime Factorization
13 × 439 × 2803
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
15996721
Product of the distinct prime numbers
The prime factorization of 15996721 is 13 × 439 × 2803.
Since it has a total of 3 prime factors.
7 , 7 , 9 , 91 , 709 , 75 , 2934 , 3068 , 64168 , 34569 , 149952 , 959956 , 1317625 , 6927447 , 31321189 , 69113139 , 959310666 , 173212446 , 5638075632 , 6421498919
n×2
31993442
n×3
47990163
n×4
63986884
n×5
79983605
n÷2
7998360.5
n÷3
5332240.3333333
n÷3
3999180.25
n÷5
3199344.2
n2
255895082751841
n3
4.0934822440531E+21
n4
6.5482293376572E+28
n5
1.0475019775852E+36
2 √n
3999.5901039982
3 √n
251.96699513159
4 √n
63.242312607922
5 √n
27.593462103106
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
-15996720
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 15996721 can be divided by 8 positive divisors.
The sum of these divisors (counting 15996721) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101000001011100110001
3
Ternary
1010002201101011
4
Quaternary
331001130301
5
Quinary
13043343341
6
Senary
1330510521
8
Octal
75013461
10
Decimal
15996721
12
Duodecimal
5435441
16
Hexadecimal
f41731
20
Vigesimal
4jjbg1
36
Base36
9iv5d
md5
9af63fe99c19afd9fa4938ad9b04620d
sha1
6acfcd5a12d09a0816317e333122c259af6d8ff6
sha256
abad0529f85f79f6b2694c46af1aac489be4adc102202c822b4586932c5f22b5
sha512
339b0e6e060c855dfc09957b4ff4ca1ef49b1816d9338f85b9f1308254e083f98a2b2cde15c4842bb80148f39514e8da2589e818d852bb5e6acd64ed987e30f2
ripemd-160
4e2f4c8fb0dfb2f3ef798af921434877ab287ec0
Diameter
31993442
Circumference
100510362.35025
Area
8.0391811206294E+14
Volume
1.7146738327357E+22
Surface area
3.2156724482517E+15
Circumference
100510362.35025
Perimeter
63986884
Area
255895082751841
Diagonal
22622779.791699
Surface area
1535370496511046
Volume
4.0934822440531E+21
Space diagonal
27707133.526504
Perimeter
47990163
Area
1.1080582118331E+14
Altitude
13853566.763252
Surface area
1.1080582118331E+14
Volume
4.8242150890611E+20
Height
7540926.5972328