15661261 is an odd 8-digits composite number following 15661260
and preceding 15661262 . In scientific notation, it is written as 1.5661261 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 12203520 positive integers (up to 15661261) that are relatively prime to 15661261.
15661261 has 8 divisors, whose sum is 19525824
The reverse of 15661261 is 16216651
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
fifteen million six hundred sixty-one thousand two hundred sixty-one
Scientific notation
1.5661261 × 10^7
Engineering notation
1.5661261 × 10^6
Prime Factorization
7 × 11 × 203393
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
15661261
Product of the distinct prime numbers
The prime factorization of 15661261 is 7 × 11 × 203393.
Since it has a total of 3 prime factors.
6 , 6 , 36 , 83 , 280 , 258 , 7374 , 6278 , 43803 , 26070 , 273318 , 666257 , 3531634 , 1900980 , 21440161 , 13974695 , 25082899 , 490748275 , 2198278776 , 6239550571
n×2
31322522
n×3
46983783
n×4
62645044
n×5
78306305
n÷2
7830630.5
n÷3
5220420.3333333
n÷3
3915315.25
n÷5
3132252.2
n2
245275096110121
n3
3.8413172969807E+21
n4
6.0159872771829E+28
n5
9.4217946920641E+35
2 √n
3957.4311112134
3 √n
250.19324259072
4 √n
62.908116417625
5 √n
27.476748935376
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
-15661260
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 15661261 can be divided by 8 positive divisors.
The sum of these divisors (counting 15661261) is 1, the average is 0.125.
Base
System
Value
2
Binary
111011101111100011001101
3
Ternary
1002110200012201
4
Quaternary
323233203031
5
Quinary
13002130021
6
Senary
1315401501
8
Octal
73574315
10
Decimal
15661261
12
Duodecimal
52b3291
16
Hexadecimal
eef8cd
20
Vigesimal
4hhd31
36
Base36
9bob1
md5
dec0c349f33579a04b704b2e0eed4d50
sha1
fa31f32abee95610dc225dbc2246c3ec0476f821
sha256
01476810335d6f03c428e0005ac69239119f6c79b9a0491e4a457091d2a20f1d
sha512
49bf1ebf9183e5634214624ad7837b93176c6aff330d413cc8ebc295dfc003302a0d42b667f59cb3a65039c9eab5675469eedd62200f111e6aa57a45b9e76bd5
ripemd-160
d4f315d86728a7d3735a4494fc566e6f0f6788df
Diameter
31322522
Circumference
98402605.007105
Area
7.7055444004809E+14
Volume
1.6090472267069E+22
Surface area
3.0822177601923E+15
Circumference
98402605.007105
Perimeter
62645044
Area
245275096110121
Diagonal
22148367.710065
Surface area
1471650576660726
Volume
3.8413172969807E+21
Space diagonal
27126099.762597
Perimeter
46983783
Area
1.0620723207352E+14
Altitude
13563049.881298
Surface area
1.0620723207352E+14
Volume
4.5270358489737E+20
Height
7382789.2366883