12561940 is an even 8-digits composite number following 12561939
and preceding 12561941 . In scientific notation, it is written as 1.2561940 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 12 positive divisors.
There are 5024768 positive integers (up to 12561940) that are relatively prime to 12561940.
12561940 has 12 divisors, whose sum is 26380116
The reverse of 12561940 is 04916521
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twelve million five hundred sixty-one thousand nine hundred forty
Scientific notation
1.2561940 × 10^7
Engineering notation
1.2561940 × 10^6
Prime Factorization
2 × 2 × 5 × 628097
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
6280970
Product of the distinct prime numbers
The prime factorization of 12561940 is 2 × 2 × 5 × 628097.
Since it has a total of 4 prime factors.
2 , 7 , 25 , 87 , 322 , 775 , 4119 , 8104 , 12872 , 35105 , 277744 , 285709 , 8063796 , 6539506 , 61977489 , 45525151 , 347417057 , 862153102 , 1066835355 , 4177656664
n×2
25123880
n×3
37685820
n×4
50247760
n×5
62809700
n÷2
6280970
n÷3
4187313.3333333
n÷3
3140485
n÷5
2512388
n2
157802336563600
n3
1.9823034837717E+21
n4
2.4901577424932E+28
n5
3.1281212151735E+35
2 √n
3544.2827201001
3 √n
232.46214360327
4 √n
59.533878759074
5 √n
26.291256544628
1 , 2 , 4 , 5 , 10 , 20 , 628097 , 1256194 , 2512388 , 3140485 , 6280970 , 12561940
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
-12561939
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 12561940 can be divided by 12 positive divisors.
The sum of these divisors (counting 12561940) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
101111111010111000010100
3
Ternary
212122012202001
4
Quaternary
233322320110
5
Quinary
11203440230
6
Senary
1125125044
8
Octal
57727024
10
Decimal
12561940
12
Duodecimal
4259784
16
Hexadecimal
bfae14
20
Vigesimal
3ia4h0
36
Base36
7h8us
md5
b2ff681eee1a0905262c75a517cca6a9
sha1
dc7ad2ff637efbfa7cb1eed2ec73129c363963c9
sha256
1c069832e19fb827483d081b7f17f5c0b85c0a95a84a4a974222c669114c16d2
sha512
3b9ad9b10e2a7a7a31c31cf449d5f377d38bd6b506581f35409fcdd0cbefa205772a57e589bec7eeb6a252730549d8b5d7fa87c49b8eb82c47df9faddeb79ee9
ripemd-160
a33a3c5d8c4ddb5927277b34bce592c30ad255cb
Diameter
25123880
Circumference
78928996.837672
Area
4.9575066126751E+14
Volume
8.303453415737E+21
Surface area
1.98300264507E+15
Circumference
78928996.837672
Perimeter
50247760
Area
157802336563600
Diagonal
17765265.917717
Surface area
946814019381600
Volume
1.9823034837717E+21
Space diagonal
21757918.321632
Perimeter
37685820
Area
68330416120310
Altitude
10878959.160816
Surface area
68330416120310
Volume
2.3361670595745E+20
Height
5921755.3059057