15561985 is an odd 8-digits composite number following 15561984
and preceding 15561986 . In scientific notation, it is written as 1.5561985 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 12393840 positive integers (up to 15561985) that are relatively prime to 15561985.
15561985 has 8 divisors, whose sum is 18758016
The reverse of 15561985 is 58916551
Previous prime number is 227
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
fifteen million five hundred sixty-one thousand nine hundred eighty-five
Scientific notation
1.5561985 × 10^7
Engineering notation
1.5561985 × 10^6
Prime Factorization
5 × 227 × 13711
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
15561985
Product of the distinct prime numbers
The prime factorization of 15561985 is 5 × 227 × 13711.
Since it has a total of 3 prime factors.
5 , 7 , 22 , 1 , 101 , 184 , 4260 , 367 , 17806 , 9500 , 790865 , 834081 , 4127002 , 2694990 , 37121948 , 60312824 , 133743995 , 866173592 , 6739189149 , 8118114259
n×2
31123970
n×3
46685955
n×4
62247940
n×5
77809925
n÷2
7780992.5
n÷3
5187328.3333333
n÷3
3890496.25
n÷5
3112397
n2
242175377140225
n3
3.7687295864255E+21
n4
5.864891329301E+28
n5
9.1269350893213E+35
2 √n
3944.868185377
3 √n
249.66346718593
4 √n
62.808185655829
5 √n
27.441825506631
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
-15561984
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 15561985 can be divided by 8 positive divisors.
The sum of these divisors (counting 15561985) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011010111010100000001
3
Ternary
1002021122000211
4
Quaternary
323113110001
5
Quinary
12440440420
6
Senary
1313314121
8
Octal
73272401
10
Decimal
15561985
12
Duodecimal
5265941
16
Hexadecimal
ed7501
20
Vigesimal
4h54j5
36
Base36
99jpd
md5
672ada578eb0c2e038fd791253dab507
sha1
c862774d2b1c685c442e845a966eca13dca3b676
sha256
2b767ce06832d7ce20267325cd74f76dfef9c1c29f6caff8491481af5fe81e30
sha512
33a722da706fb883875689f32e40bca314004117059509541f507a6ceb216b1beb64e236489560baff0f0b73f1477cded139615ba5489b3337013b3912fa6b76
ripemd-160
199fdf2d92d9609c4fdc53b876dd26df079a8c17
Diameter
31123970
Circumference
97778835.502549
Area
7.6081638570407E+14
Volume
1.5786417576108E+22
Surface area
3.0432655428163E+15
Circumference
97778835.502549
Perimeter
62247940
Area
242175377140225
Diagonal
22007970.244447
Surface area
1453052262841350
Volume
3.7687295864255E+21
Space diagonal
26954148.686625
Perimeter
46685955
Area
1.0486501438726E+14
Altitude
13477074.343312
Surface area
1.0486501438726E+14
Volume
4.4414904116998E+20
Height
7335990.0814822