15661331 is an odd 8-digits composite number following 15661330
and preceding 15661332 . In scientific notation, it is written as 1.5661331 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 12 positive divisors.
There are 13110048 positive integers (up to 15661331) that are relatively prime to 15661331.
15661331 has 12 divisors, whose sum is 18644472
The reverse of 15661331 is 13316651
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
fifteen million six hundred sixty-one thousand three hundred thirty-one
Scientific notation
1.5661331 × 10^7
Engineering notation
1.5661331 × 10^6
Prime Factorization
7 × 7 × 43 × 7433
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2237333
Product of the distinct prime numbers
The prime factorization of 15661331 is 7 × 7 × 43 × 7433.
Since it has a total of 4 prime factors.
5 , 1 , 38 , 94 , 967 , 513 , 3554 , 4860 , 81669 , 31397 , 715199 , 307525 , 9040372 , 7251522 , 83445536 , 58043128 , 525887381 , 911310067 , 9227164169 , 4497458877
n×2
31322662
n×3
46983993
n×4
62645324
n×5
78306655
n÷2
7830665.5
n÷3
5220443.6666667
n÷3
3915332.75
n÷5
3132266.2
n2
245277288691561
n3
3.8413688049811E+21
n4
6.0160948347883E+28
n5
9.422005253501E+35
2 √n
3957.4399553247
3 √n
250.19361534701
4 √n
62.908186711466
5 √n
27.476773497497
1 , 7 , 43 , 49 , 301 , 2107 , 7433 , 52031 , 319619 , 364217 , 2237333 , 15661331
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-15661330
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 15661331 can be divided by 12 positive divisors.
The sum of these divisors (counting 15661331) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111011101111100100010011
3
Ternary
1002110200022022
4
Quaternary
323233210103
5
Quinary
13002130311
6
Senary
1315402055
8
Octal
73574423
10
Decimal
15661331
12
Duodecimal
52b332b
16
Hexadecimal
eef913
20
Vigesimal
4hhd6b
36
Base36
9bocz
md5
28dcb4dfa9d1a7079a49ea0c74bd361b
sha1
f86d5d444ef70a0b072fd9db5a31da827abe9199
sha256
b5f2a62991152f66d60a7f396851ee3cbc0b9e9688a19d6b69c31690a15cb9fe
sha512
38d14acaef13af901b274c00641626ca94ababc646674ddfe42482e781977dcd389e9ec37fc7733d1274c1483379d6f6eb73ec1e8228f8d96e265ac9175c5200
ripemd-160
7c447caa269baea0813b987a1ec2c313183aec5e
Diameter
31322662
Circumference
98403044.830076
Area
7.7056132824583E+14
Volume
1.6090688023277E+22
Surface area
3.0822453129833E+15
Circumference
98403044.830076
Perimeter
62645324
Area
245277288691561
Diagonal
22148466.705014
Surface area
1471663732149366
Volume
3.8413688049811E+21
Space diagonal
27126221.006153
Perimeter
46983993
Area
1.0620818148913E+14
Altitude
13563110.503077
Surface area
1.0620818148913E+14
Volume
4.5270965517343E+20
Height
7382822.2350047