1281372 is an even 7-digits composite number following 1281371
and preceding 1281373 . In scientific notation, it is written as 1.281372 × 10^6.
The sum of its digits is 24. It has a total of 4 prime factors and 12 positive divisors.
There are 427120 positive integers (up to 1281372) that are relatively prime to 1281372.
1281372 has 12 divisors, whose sum is 2989896
The reverse of 1281372 is 2731821
Previous prime number is 3
Is Prime? no
Number parity even
Number length 7
Sum of Digits 24
Digital Root 6
Name
one million two hundred eighty-one thousand three hundred seventy-two
Scientific notation
1.281372 × 10^6
Engineering notation
1.281372 × 10^6
Prime Factorization
2 × 2 × 3 × 106781
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
640686
Product of the distinct prime numbers
The prime factorization of 1281372 is 2 × 2 × 3 × 106781.
Since it has a total of 4 prime factors.
2 , 4 , 5 , 69 , 982 , 335 , 872 , 9883 , 87999 , 20174 , 115278 , 938014 , 1473205 , 5468275 , 19249860 , 89452816 , 330831158 , 838194390 , 8667638734 , 2021664495
n×2
2562744
n×3
3844116
n×4
5125488
n×5
6406860
n÷2
640686
n÷3
427124
n÷3
320343
n÷5
256274.4
n2
1641914202384
n3
2103902885337190848
n4
2.6958822479903E+24
n5
3.4544280278718E+30
2 √n
1131.9770315691
3 √n
108.6154843632
4 √n
33.644866347916
5 √n
16.654632190444
1 , 2 , 3 , 4 , 6 , 12 , 106781 , 213562 , 320343 , 427124 , 640686 , 1281372
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
-1281371
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 1281372 can be divided by 12 positive divisors.
The sum of these divisors (counting 1281372) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100111000110101011100
3
Ternary
2102002201020
4
Quaternary
10320311130
5
Quinary
312000442
6
Senary
43244140
8
Octal
4706534
10
Decimal
1281372
12
Duodecimal
519650
16
Hexadecimal
138d5c
20
Vigesimal
8038c
36
Base36
rgpo
md5
483540d834d6eb648d32e3140e77fd1a
sha1
ef56f97a247d339e8453548163d4b501f03e900c
sha256
4bbaa0bbf27212f6544d2bba9bbc2052f46ce768f79b6085ecbc21decc6781e8
sha512
0fe6f3abeb8e2b14a800ae802d649022e3b4a9a68ae0efce8bddb123c807cf2d7d373fb58f677a1be63c92699f431933599690b49feea9741a7494104d4e69ab
ripemd-160
2f1f5b3c484f9f4e0e499c7a812545206b20e460
Diameter
2562744
Circumference
8051097.7234313
Area
5158225596034.3
Volume
8.8128077979222E+18
Surface area
20632902384137
Circumference
8051097.7234313
Perimeter
5125488
Area
1641914202384
Diagonal
1812133.6608451
Surface area
9851485214304
Volume
2103902885337190848
Space diagonal
2219401.4073961
Perimeter
3844116
Area
710969705049.5
Altitude
1109700.7036981
Surface area
710969705049.5
Volume
2.4794733286331E+17
Height
604044.55361505