2011981 is an odd 7-digits composite number following 2011980
and preceding 2011982 . In scientific notation, it is written as 2.011981 × 10^6.
The sum of its digits is 22. It has a total of 2 prime factors and 4 positive divisors.
There are 2007612 positive integers (up to 2011981) that are relatively prime to 2011981.
2011981 has 4 divisors, whose sum is 2016352
The reverse of 2011981 is 1891102
Previous prime number is 523
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 22
Digital Root 4
Name
two million eleven thousand nine hundred eighty-one
Scientific notation
2.011981 × 10^6
Engineering notation
2.011981 × 10^6
Prime Factorization
523 × 3847
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2011981
Product of the distinct prime numbers
The prime factorization of 2011981 is 523 × 3847.
Since it has a total of 2 prime factors.
5 , 10 , 53 , 95 , 655 , 57 , 8718 , 9094 , 32102 , 48268 , 631782 , 470654 , 3275664 , 4092323 , 11928889 , 79469069 , 128150549 , 180128678 , 8441725743 , 5285443560
n×2
4023962
n×3
6035943
n×4
8047924
n×5
10059905
n÷2
1005990.5
n÷3
670660.33333333
n÷3
502995.25
n÷5
402396.2
n2
4048067544361
n3
8144634985970989141
n4
1.6386850843709E+25
n5
3.2970032547376E+31
2 √n
1418.4431606518
3 √n
126.24318951596
4 √n
37.66222458448
5 √n
18.227402130709
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
-2011980
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 2011981 can be divided by 4 positive divisors.
The sum of these divisors (counting 2011981) is 1, the average is 0.25.
Base
System
Value
2
Binary
111101011001101001101
3
Ternary
10210012220211
4
Quaternary
13223031031
5
Quinary
1003340411
6
Senary
111042421
8
Octal
7531515
10
Decimal
2011981
12
Duodecimal
810411
16
Hexadecimal
1eb34d
20
Vigesimal
cb9j1
36
Base36
174gd
md5
cbf7db00f882a8a0e2a5974ac7f7b98d
sha1
77bd42fdc84f4f3321e57b5d6bacb59fee85ec91
sha256
aa372291c513acaec3b8d7517982905199bbfd16268c792930be54d603fbcd74
sha512
ea353b74cdb8379323bbed04efd95faf6685025db75d79c631968e2a8ce99bb08cad528892a02871e5e5f89f5dd5edeee3a0993e300343b1fa5b8a07391dc231
ripemd-160
7be08f6cc4e5618622d84c7ca78e449fabea6afb
Diameter
4023962
Circumference
12641649.457524
Area
12717379258600
Volume
3.4116167250796E+19
Surface area
50869517034399
Circumference
12641649.457524
Perimeter
8047924
Area
4048067544361
Diagonal
2845370.817437
Surface area
24288405266166
Volume
8144634985970989141
Space diagonal
3484853.3158632
Perimeter
6035943
Area
1752864664826
Altitude
1742426.6579316
Surface area
1752864664826
Volume
9.5985443814488E+17
Height
948456.93914566