15661291 is an odd 8-digits prime number following 15661290
and preceding 15661292 . In scientific notation, it is written as 1.5661291 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 15661290 positive integers (up to 15661291) that are relatively prime to 15661291.
15661291 has 2 divisors, whose sum is 15661292
The reverse of 15661291 is 19216651
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
fifteen million six hundred sixty-one thousand two hundred ninety-one
Scientific notation
1.5661291 × 10^7
Engineering notation
1.5661291 × 10^6
Prime Factorization
15661291
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
15661291
Product of the distinct prime numbers
The prime factorization of 15661291 is 15661291.
Since it has a total of 1 prime factors.
1 , 1 , 27 , 33 , 543 , 702 , 5970 , 6282 , 65364 , 73906 , 33605 , 951283 , 4281881 , 6063186 , 77100302 , 81179149 , 488648578 , 500481738 , 9320123602 , 8221730667
n×2
31322582
n×3
46983873
n×4
62645164
n×5
78306455
n÷2
7830645.5
n÷3
5220430.3333333
n÷3
3915322.75
n÷5
3132258.2
n2
245276035786681
n3
3.8413393717816E+21
n4
6.0160333731229E+28
n5
9.421884932219E+35
2 √n
3957.4349015492
3 √n
250.19340234355
4 √n
62.908146543586
5 √n
27.47675946201
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
15661292
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
7830646
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3957.4350278937
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998722966
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 15661291 can be divided by 2 positive divisors.
The sum of these divisors (counting 15661291) is 15661292, the average is 7830646.
Base
System
Value
2
Binary
111011101111100011101011
3
Ternary
1002110200020211
4
Quaternary
323233203223
5
Quinary
13002130131
6
Senary
1315401551
8
Octal
73574353
10
Decimal
15661291
12
Duodecimal
52b32b7
16
Hexadecimal
eef8eb
20
Vigesimal
4hhd4b
36
Base36
9bobv
md5
a090912b4bcc121e2e2f425d375560ef
sha1
3927f7372ce4229fae9d05f0559d74bb351e45e3
sha256
1ee95a7cec812d85827dde528a1cf5a6a606f77f0c6d87fae1621fb1f19d3e68
sha512
073bb2840f792f14575306b004337c6684ae961d8e5afcc9bd3144d12595b051343eec30baf5589566422d13e57a637ed650f315722faf5a5d51029feb648263
ripemd-160
2660b50b2326cbfed9951979a9f987e8cfd3d746
Diameter
31322582
Circumference
98402793.502664
Area
7.7055739212906E+14
Volume
1.6090564733779E+22
Surface area
3.0822295685163E+15
Circumference
98402793.502664
Perimeter
62645164
Area
245276035786681
Diagonal
22148410.136472
Surface area
1471656214720086
Volume
3.8413393717816E+21
Space diagonal
27126151.724121
Perimeter
46983873
Area
1.062076389654E+14
Altitude
13563075.862061
Surface area
1.062076389654E+14
Volume
4.5270618643761E+20
Height
7382803.3788239