12561642 is an even 8-digits composite number following 12561641
and preceding 12561643 . In scientific notation, it is written as 1.2561642 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 4187052 positive integers (up to 12561642) that are relatively prime to 12561642.
12561642 has 8 divisors, whose sum is 18920736
The reverse of 12561642 is 24616521
Previous prime number is 243
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twelve million five hundred sixty-one thousand six hundred forty-two
Scientific notation
1.2561642 × 10^7
Engineering notation
1.2561642 × 10^6
Prime Factorization
2 × 243 × 25847
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12561642
Product of the distinct prime numbers
The prime factorization of 12561642 is 2 × 243 × 25847.
Since it has a total of 3 prime factors.
4 , 4 , 33 , 16 , 869 , 318 , 5064 , 5367 , 37182 , 92051 , 12477 , 812715 , 4474343 , 1582755 , 73568703 , 15577864 , 589750545 , 913894572 , 1814520008 , 9767220654
n×2
25123284
n×3
37684926
n×4
50246568
n×5
62808210
n÷2
6280821
n÷3
4187214
n÷3
3140410.5
n÷5
2512328.4
n2
157794849736164
n3
1.9821624118295E+21
n4
2.4899214603259E+28
n5
3.1277501992731E+35
2 √n
3544.240680315
3 √n
232.46030539817
4 √n
59.533525683559
5 √n
26.291131804838
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
-12561641
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 12561642 can be divided by 8 positive divisors.
The sum of these divisors (counting 12561642) is 1, the average is 0.125.
Base
System
Value
2
Binary
101111111010110011101010
3
Ternary
212122012100000
4
Quaternary
233322303222
5
Quinary
11203433032
6
Senary
1125123430
8
Octal
57726352
10
Decimal
12561642
12
Duodecimal
4259576
16
Hexadecimal
bfacea
20
Vigesimal
3ia422
36
Base36
7h8mi
md5
20600ad0ed5ce88090d047ab0e3f1949
sha1
6713ed1fd3f6cfff32afcc261379c82f0a2ce00d
sha256
a3c1c1a7810c99b724693b1c8db61efece074c8224a9b43d9750f8079b1ededc
sha512
68f32dde38f0ca412e0ead593c97d64e74fff0d373b87ab2295e291c70b4a2e419d29063249467001a6e8f0333873be45ff14ea2f3d4ef5f9412eaf9077d0403
ripemd-160
0a890e284b0c67826e39c0162087f92d71cb9c41
Diameter
25123284
Circumference
78927124.44845
Area
4.9572714070544E+14
Volume
8.3028624949671E+21
Surface area
1.9829085628218E+15
Circumference
78927124.44845
Perimeter
50246568
Area
157794849736164
Diagonal
17764844.482075
Surface area
946769098416984
Volume
1.9821624118295E+21
Space diagonal
21757402.170491
Perimeter
37684926
Area
68327174228933
Altitude
10878701.085246
Surface area
68327174228933
Volume
2.3360008046962E+20
Height
5921614.8273585