1280913 is an odd 7-digits composite number following 1280912
and preceding 1280914 . In scientific notation, it is written as 1.280913 × 10^6.
The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors.
There are 853940 positive integers (up to 1280913) that are relatively prime to 1280913.
1280913 has 4 divisors, whose sum is 1707888
The reverse of 1280913 is 3190821
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 24
Digital Root 6
Name
one million two hundred eighty thousand nine hundred thirteen
Scientific notation
1.280913 × 10^6
Engineering notation
1.280913 × 10^6
Prime Factorization
3 × 426971
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1280913
Product of the distinct prime numbers
The prime factorization of 1280913 is 3 × 426971.
Since it has a total of 2 prime factors.
6 , 6 , 10 , 70 , 784 , 509 , 9499 , 2572 , 24055 , 58815 , 129839 , 748647 , 7746704 , 1371794 , 39491149 , 75923018 , 404193224 , 240276465 , 3313565458 , 1467199088
n×2
2561826
n×3
3842739
n×4
5123652
n×5
6404565
n÷2
640456.5
n÷3
426971
n÷3
320228.25
n÷5
256182.6
n2
1640738113569
n3
2101642779266008497
n4
2.692021557318E+24
n5
3.4482454090488E+30
2 √n
1131.7742707802
3 √n
108.60251377093
4 √n
33.641852962942
5 √n
16.653438848972
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
-1280912
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 1280913 can be divided by 4 positive divisors.
The sum of these divisors (counting 1280913) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111000101110010001
3
Ternary
2102002002020
4
Quaternary
10320232101
5
Quinary
311442123
6
Senary
43242053
8
Octal
4705621
10
Decimal
1280913
12
Duodecimal
519329
16
Hexadecimal
138b91
20
Vigesimal
8025d
36
Base36
rgcx
md5
c3e08d159ebbb037cf0e7b69f25ebc8e
sha1
009cc0ecf6fb741c2067355dd52c4d3768410697
sha256
552cc580a90cb1158e7a16e7fbe263ca5e1d04be8759d8d9c1c33dff2970fcf9
sha512
f76849aa610a2a648013d161789b523966bcd73fb7d2b7de8f0113c25e858154764b931bbd66b25c9ab60675a924d7f20b7866b5776ff677f9025c04e17c1abd
ripemd-160
225ca786f400d11c871b5241032cab2b52344b2e
Diameter
2561826
Circumference
8048213.7413753
Area
5154530804053.1
Volume
8.8033406877495E+18
Surface area
20618123216213
Circumference
8048213.7413753
Perimeter
5123652
Area
1640738113569
Diagonal
1811484.53682
Surface area
9844428681414
Volume
2101642779266008497
Space diagonal
2218606.3960755
Perimeter
3842739
Area
710460443654.06
Altitude
1109303.1980377
Surface area
710460443654.06
Volume
2.4768097680846E+17
Height
603828.17894