15994987 is an odd 8-digits composite number following 15994986
and preceding 15994988 . In scientific notation, it is written as 1.5994987 × 10^7.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 15848136 positive integers (up to 15994987) that are relatively prime to 15994987.
15994987 has 4 divisors, whose sum is 16141840
The reverse of 15994987 is 78949951
Previous prime number is 109
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 52
Digital Root 7
Name
fifteen million nine hundred ninety-four thousand nine hundred eighty-seven
Scientific notation
1.5994987 × 10^7
Engineering notation
1.5994987 × 10^6
Prime Factorization
109 × 146743
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
15994987
Product of the distinct prime numbers
The prime factorization of 15994987 is 109 × 146743.
Since it has a total of 2 prime factors.
7 , 9 , 68 , 12 , 633 , 170 , 1467 , 4698 , 21105 , 27639 , 900035 , 635786 , 2821300 , 5449354 , 81591363 , 16983355 , 410221886 , 907920278 , 3736792705 , 9085252478
n×2
31989974
n×3
47984961
n×4
63979948
n×5
79974935
n÷2
7997493.5
n÷3
5331662.3333333
n÷3
3998746.75
n÷5
3198997.4
n2
255839609130169
n3
4.0921512221221E+21
n4
6.5453905599878E+28
n5
1.0469343691693E+36
2 √n
3999.3733259099
3 √n
251.95789062913
4 √n
63.240598715619
5 √n
27.59286386628
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
-15994986
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 15994987 can be divided by 4 positive divisors.
The sum of these divisors (counting 15994987) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101000001000001101011
3
Ternary
1010002121222221
4
Quaternary
331001001223
5
Quinary
13043314422
6
Senary
1330454511
8
Octal
75010153
10
Decimal
15994987
12
Duodecimal
5434437
16
Hexadecimal
f4106b
20
Vigesimal
4jj797
36
Base36
9itt7
md5
338c9aba16b0c1947fb55c86ce044410
sha1
b2cfa0516326682150daea7167610a2af97acf8e
sha256
81424cea3facd4a32d429424b6dacf7e11460d51fdc29d97da374d2774ecf10b
sha512
d7533c69bbc084f111ef36a7cf27dfc4212418d444b2f1e76b58bd206757f462b51c0bcda0a677cd7b5adc63325c6c7f5b8a27363e32799e153b9a6ae2000cc2
ripemd-160
70f064f64529a4afc48ef823deffdaca05ae86d5
Diameter
31989974
Circumference
100499467.30693
Area
8.0374383654062E+14
Volume
1.714116295573E+22
Surface area
3.2149753461625E+15
Circumference
100499467.30693
Perimeter
63979948
Area
255839609130169
Diagonal
22620327.545381
Surface area
1535037654781014
Volume
4.0921512221221E+21
Space diagonal
27704130.150404
Perimeter
47984961
Area
1.107818004005E+14
Altitude
13852065.075202
Surface area
1.107818004005E+14
Volume
4.8226464646723E+20
Height
7540109.1817938