1281641 is an odd 7-digits composite number following 1281640
and preceding 1281642 . In scientific notation, it is written as 1.281641 × 10^6.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 1276800 positive integers (up to 1281641) that are relatively prime to 1281641.
1281641 has 4 divisors, whose sum is 1286484
The reverse of 1281641 is 1461821
Previous prime number is 281
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 23
Digital Root 5
Name
one million two hundred eighty-one thousand six hundred forty-one
Scientific notation
1.281641 × 10^6
Engineering notation
1.281641 × 10^6
Prime Factorization
281 × 4561
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1281641
Product of the distinct prime numbers
The prime factorization of 1281641 is 281 × 4561.
Since it has a total of 2 prime factors.
3 , 5 , 29 , 15 , 77 , 928 , 9964 , 4401 , 94562 , 56571 , 999901 , 293777 , 5697897 , 2000629 , 77539925 , 8548438 , 525820267 , 751602724 , 624987539 , 2649550413
n×2
2563282
n×3
3844923
n×4
5126564
n×5
6408205
n÷2
640820.5
n÷3
427213.66666667
n÷3
320410.25
n÷5
256328.2
n2
1642603652881
n3
2105228188282057721
n4
2.698146760458E+24
n5
3.4580555122202E+30
2 √n
1132.0958439991
3 √n
108.62308442547
4 √n
33.646631985967
5 √n
16.655331397216
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
-1281640
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 1281641 can be divided by 4 positive divisors.
The sum of these divisors (counting 1281641) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111000111001101001
3
Ternary
2102010002012
4
Quaternary
10320321221
5
Quinary
312003031
6
Senary
43245305
8
Octal
4707151
10
Decimal
1281641
12
Duodecimal
519835
16
Hexadecimal
138e69
20
Vigesimal
80421
36
Base36
rgx5
md5
017c0da0cfbb89f9f83a9303e9559e81
sha1
a80a4e02ddd2210c17f6e1759bed801d2344a632
sha256
78bfa38f618e5894a53feedd894af9b034bf55074ec84831a49e1a22bfbcecba
sha512
e24ae37a9105dc278bed4bf23e0de1ecd278af4365dce568b31080998021c327fabb1a3998e6e3891f94b40993ecb9d5a1268aa6c72057a14ae526ea3c0d9d30
ripemd-160
b9193a6a1e7b113aff51e062a6bb5dfab1194a0e
Diameter
2563282
Circumference
8052787.900279
Area
5160391568650.7
Volume
8.8183592139161E+18
Surface area
20641566274603
Circumference
8052787.900279
Perimeter
5126564
Area
1642603652881
Diagonal
1812514.0842934
Surface area
9855621917286
Volume
2105228188282057721
Space diagonal
2219867.3290634
Perimeter
3844923
Area
711268245872.03
Altitude
1109933.6645317
Surface area
711268245872.03
Volume
2.4810352131322E+17
Height
604171.36143114