15661642 is an even 8-digits composite number following 15661641
and preceding 15661643 . In scientific notation, it is written as 1.5661642 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 7830820 positive integers (up to 15661642) that are relatively prime to 15661642.
15661642 has 4 divisors, whose sum is 23492466
The reverse of 15661642 is 24616651
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
fifteen million six hundred sixty-one thousand six hundred forty-two
Scientific notation
1.5661642 × 10^7
Engineering notation
1.5661642 × 10^6
Prime Factorization
2 × 7830821
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
15661642
Product of the distinct prime numbers
The prime factorization of 15661642 is 2 × 7830821.
Since it has a total of 2 prime factors.
4 , 9 , 29 , 51 , 487 , 743 , 5286 , 7996 , 5498 , 4612 , 133057 , 688775 , 155547 , 8652439 , 65841476 , 42917406 , 896906679 , 100450140 , 5512636165 , 6078983184
n×2
31323284
n×3
46984926
n×4
62646568
n×5
78308210
n÷2
7830821
n÷3
5220547.3333333
n÷3
3915410.5
n÷5
3132328.4
n2
245287030136164
n3
3.8415976532358E+21
n4
6.0165727153019E+28
n5
9.4229407934027E+35
2 √n
3957.4792482084
3 √n
250.19527143655
4 √n
62.908499014111
5 √n
27.476882622433
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
-15661641
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 15661642 can be divided by 4 positive divisors.
The sum of these divisors (counting 15661642) is 1, the average is 0.25.
Base
System
Value
2
Binary
111011101111101001001010
3
Ternary
1002110200201211
4
Quaternary
323233221022
5
Quinary
13002133032
6
Senary
1315403334
8
Octal
73575112
10
Decimal
15661642
12
Duodecimal
52b354a
16
Hexadecimal
eefa4a
20
Vigesimal
4hhe22
36
Base36
9bolm
md5
ddac8a2a05a94c285a80874fe689475b
sha1
371a8bea24621366d0d4d4dd64f827fb54cfae7a
sha256
dbe107ece7b782aa37c662b5397c142d0c3521b22d0e77be5786807514e48c72
sha512
3b5b3bd7ed2c86cec08d9d9391e1d07cff911afd98d116bb53b4146625b3fb13a5c79e1e85ad8c9ddb0475b2a68cba0dcf031d3eef77533eeda86907bc24721e
ripemd-160
344bc3592299edf3dc89c0c9703bfd1a65f0173d
Diameter
31323284
Circumference
98404998.900707
Area
7.7059193189663E+14
Volume
1.6091646620605E+22
Surface area
3.0823677275865E+15
Circumference
98404998.900707
Perimeter
62646568
Area
245287030136164
Diagonal
22148906.525432
Surface area
1471722180816984
Volume
3.8415976532358E+21
Space diagonal
27126759.673955
Perimeter
46984926
Area
1.0621239965838E+14
Altitude
13563379.836977
Surface area
1.0621239965838E+14
Volume
4.527366251989E+20
Height
7382968.8418107