15663985 is an odd 8-digits composite number following 15663984
and preceding 15663986 . In scientific notation, it is written as 1.5663985 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 12447600 positive integers (up to 15663985) that are relatively prime to 15663985.
15663985 has 8 divisors, whose sum is 18922176
The reverse of 15663985 is 58936651
Previous prime number is 151
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
fifteen million six hundred sixty-three thousand nine hundred eighty-five
Scientific notation
1.5663985 × 10^7
Engineering notation
1.5663985 × 10^6
Prime Factorization
5 × 151 × 20747
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
15663985
Product of the distinct prime numbers
The prime factorization of 15663985 is 5 × 151 × 20747.
Since it has a total of 3 prime factors.
10 , 10 , 8 , 30 , 525 , 811 , 5490 , 8331 , 74153 , 7881 , 559053 , 389975 , 1325899 , 8269125 , 26305831 , 47321891 , 902826595 , 268679155 , 5323479620 , 2080265524
n×2
31327970
n×3
46991955
n×4
62655940
n×5
78319925
n÷2
7831992.5
n÷3
5221328.3333333
n÷3
3915996.25
n÷5
3132797
n2
245360426080225
n3
3.8433220337143E+21
n4
6.020173868627E+28
n5
9.4299913175565E+35
2 √n
3957.7752589049
3 √n
250.20774731639
4 √n
62.910851678426
5 √n
27.477704688011
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
-15663984
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 15663985 can be divided by 8 positive divisors.
The sum of these divisors (counting 15663985) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011110000001101110001
3
Ternary
1002110210221121
4
Quaternary
323300031301
5
Quinary
13002221420
6
Senary
1315422241
8
Octal
73601561
10
Decimal
15663985
12
Duodecimal
52b4981
16
Hexadecimal
ef0371
20
Vigesimal
4hhjj5
36
Base36
9bqep
md5
626ea1201f2361556b433ad6bfec4d59
sha1
5b6b5f763bd6acae5678704d31e4bbbd407571fa
sha256
06948a1b8e3e00f7ec0b957f54c5c17d74dcb0d5ae0bd4b745efd5599410689d
sha512
07ec62bc3c89868c86e2d0bb3980f826f6915d96c9cffe2850ec89ee1df67ccc3d46a4cb85a9fb35c89b12d292b5a6d0c68585eadab1a28c5bc0e729cb3afd49
ripemd-160
65af0a976a5d129cef1cd52c470ed3336910a63d
Diameter
31327970
Circumference
98419720.403881
Area
7.708225120553E+14
Volume
1.6098869688662E+22
Surface area
3.0832900482212E+15
Circumference
98419720.403881
Perimeter
62655940
Area
245360426080225
Diagonal
22152220.027809
Surface area
1472162556481350
Volume
3.8433220337143E+21
Space diagonal
27130817.868997
Perimeter
46991955
Area
1.0624418103442E+14
Altitude
13565408.934498
Surface area
1.0624418103442E+14
Volume
4.5293984538717E+20
Height
7384073.3426029