15561661 is an odd 8-digits composite number following 15561660
and preceding 15561662 . In scientific notation, it is written as 1.5561661 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 15025024 positive integers (up to 15561661) that are relatively prime to 15561661.
15561661 has 4 divisors, whose sum is 16098300
The reverse of 15561661 is 16616551
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
fifteen million five hundred sixty-one thousand six hundred sixty-one
Scientific notation
1.5561661 × 10^7
Engineering notation
1.5561661 × 10^6
Prime Factorization
29 × 536609
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
15561661
Product of the distinct prime numbers
The prime factorization of 15561661 is 29 × 536609.
Since it has a total of 2 prime factors.
6 , 10 , 27 , 73 , 798 , 507 , 9189 , 66 , 22603 , 53049 , 923821 , 517984 , 2486438 , 380488 , 55036032 , 38875967 , 114207497 , 235072389 , 3757874158 , 4624448664
n×2
31123322
n×3
46684983
n×4
62246644
n×5
77808305
n÷2
7780830.5
n÷3
5187220.3333333
n÷3
3890415.25
n÷5
3112332.2
n2
242165293078921
n3
3.7684941968598E+21
n4
5.8644029172E+28
n5
9.1259850164877E+35
2 √n
3944.8271191524
3 √n
249.66173451227
4 √n
62.807858737202
5 √n
27.441711238104
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
-15561660
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 15561661 can be divided by 4 positive divisors.
The sum of these divisors (counting 15561661) is 1, the average is 0.25.
Base
System
Value
2
Binary
111011010111001110111101
3
Ternary
1002021121120211
4
Quaternary
323113032331
5
Quinary
12440433121
6
Senary
1313312421
8
Octal
73271675
10
Decimal
15561661
12
Duodecimal
5265711
16
Hexadecimal
ed73bd
20
Vigesimal
4h5431
36
Base36
99jgd
md5
50839f3d56957f9b211335e552125a30
sha1
abbe2b2676d93de63e07d5a31e8b195a08827444
sha256
0d6edf145132f93b116d01804c7f26d8b40d03b202dff50d72d45316086129a2
sha512
863f6cae010858e869f5165645cdd02516b61c77c5a7bd28ba6166ffed81b5d42f5647587f3a9bb09adf3a73aaec0acff652805c03cdc8834963418c038e8050
ripemd-160
47eed3d045525cedec817b35de4c3d5fd609aead
Diameter
31123322
Circumference
97776799.75051
Area
7.6078470569116E+14
Volume
1.5785431578601E+22
Surface area
3.0431388227646E+15
Circumference
97776799.75051
Perimeter
62246644
Area
242165293078921
Diagonal
22007512.039252
Surface area
1452991758473526
Volume
3.7684941968598E+21
Space diagonal
26953587.502163
Perimeter
46684983
Area
1.0486064786062E+14
Altitude
13476793.751082
Surface area
1.0486064786062E+14
Volume
4.4412130024362E+20
Height
7335837.3464175