1291142 is an even 7-digits composite number following 1291141
and preceding 1291143 . In scientific notation, it is written as 1.291142 × 10^6.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 645570 positive integers (up to 1291142) that are relatively prime to 1291142.
1291142 has 4 divisors, whose sum is 1936716
The reverse of 1291142 is 2411921
Previous prime number is 2
Is Prime? no
Number parity even
Number length 7
Sum of Digits 20
Digital Root 2
Name
one million two hundred ninety-one thousand one hundred forty-two
Scientific notation
1.291142 × 10^6
Engineering notation
1.291142 × 10^6
Prime Factorization
2 × 645571
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1291142
Product of the distinct prime numbers
The prime factorization of 1291142 is 2 × 645571.
Since it has a total of 2 prime factors.
5 , 9 , 80 , 100 , 887 , 969 , 3876 , 4210 , 41706 , 35054 , 770157 , 494040 , 3636430 , 2638036 , 28602434 , 98420644 , 471566353 , 692760112 , 8147235874 , 1639267457
n×2
2582284
n×3
3873426
n×4
5164568
n×5
6455710
n÷2
645571
n÷3
430380.66666667
n÷3
322785.5
n÷5
258228.4
n2
1667047664164
n3
2152395255204035288
n4
2.7790479145946E+24
n5
3.5881454825456E+30
2 √n
1136.284295412
3 √n
108.8908370392
4 √n
33.708816286129
5 √n
16.679952199796
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
-1291141
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 1291142 can be divided by 4 positive divisors.
The sum of these divisors (counting 1291142) is 1, the average is 0.25.
Base
System
Value
2
Binary
100111011001110000110
3
Ternary
2102121010002
4
Quaternary
10323032012
5
Quinary
312304032
6
Senary
43401302
8
Octal
4731606
10
Decimal
1291142
12
Duodecimal
523232
16
Hexadecimal
13b386
20
Vigesimal
817h2
36
Base36
ro92
md5
6a01da1b213108d1f2d9b0e022f4d71f
sha1
0278b5dad88a07f50e2b1bc8d724a2a3ad5eef7f
sha256
af543b7fa03a7942163c3bedd988a580ee06bc0baddcedddbbac7c66f6e6637a
sha512
03536554268cee11e4dcd02bb4261e3ecc8e32bd19f568c9182fca4ef17f22bf85a310b4aa7eb70056acb4bf203f74dff659e46b6c44731585a11f5fef2cedd4
ripemd-160
e71d6d6abddbe62b7c0a381eee37b8a0ca9e42b1
Diameter
2582284
Circumference
8112484.4438825
Area
5237184694921.6
Volume
9.0159321618274E+18
Surface area
20948738779687
Circumference
8112484.4438825
Perimeter
5164568
Area
1667047664164
Diagonal
1825950.5273495
Surface area
10002285984984
Volume
2152395255204035288
Space diagonal
2236323.5437861
Perimeter
3873426
Area
721852813242.77
Altitude
1118161.771893
Surface area
721852813242.77
Volume
2.5366221345809E+17
Height
608650.17578317