2021391 is an odd 7-digits composite number following 2021390
and preceding 2021392 . In scientific notation, it is written as 2.021391 × 10^6.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 1276560 positive integers (up to 2021391) that are relatively prime to 2021391.
2021391 has 8 divisors, whose sum is 2364400
The reverse of 2021391 is 1931202
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 18
Digital Root 9
Name
two million twenty-one thousand three hundred ninety-one
Scientific notation
2.021391 × 10^6
Engineering notation
2.021391 × 10^6
Prime Factorization
9 × 19 × 11821
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2021391
Product of the distinct prime numbers
The prime factorization of 2021391 is 9 × 19 × 11821.
Since it has a total of 3 prime factors.
3 , 10 , 66 , 18 , 833 , 540 , 1630 , 4904 , 34127 , 7109 , 831184 , 641325 , 4412291 , 1264278 , 11024586 , 22330722 , 426910666 , 519648820 , 2504463549 , 2058757808
n×2
4042782
n×3
6064173
n×4
8085564
n×5
10106955
n÷2
1010695.5
n÷3
673797
n÷3
505347.75
n÷5
404278.2
n2
4086021574881
n3
8259447237270279471
n4
1.6695572310393E+25
n5
3.3748279608078E+31
2 √n
1421.7563082329
3 √n
126.4396958789
4 √n
37.706183952144
5 √n
18.244420171477
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2021390
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2021391 can be divided by 8 positive divisors.
The sum of these divisors (counting 2021391) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101101100000001111
3
Ternary
10210200211100
4
Quaternary
13231200033
5
Quinary
1004141031
6
Senary
111154143
8
Octal
7554017
10
Decimal
2021391
12
Duodecimal
815953
16
Hexadecimal
1ed80f
20
Vigesimal
ccd9b
36
Base36
17bpr
md5
d53a051aab01894377c289ff865d7591
sha1
66d7df7a8f69f277a641fa9b4a399cc58a3d34bc
sha256
fc404e560a228640ddc69d5b49b2592f54cbc674c2bcc1e80756f22be7c9791b
sha512
d9b26b417b92fade65e037ef2e837a17c670f357f457b818763b88b903c14d0d71867c9340ede4ac852edde3e871f1acacb1ce50b117755747105f4368d86f28
ripemd-160
9befd0f4d9f5ba245f8dee65a75a6f5e112f9a11
Diameter
4042782
Circumference
12700774.231265
Area
12836615362056
Volume
3.4597091684428E+19
Surface area
51346461448222
Circumference
12700774.231265
Perimeter
8085564
Area
4086021574881
Diagonal
2858678.5670589
Surface area
24516129449286
Volume
8259447237270279471
Space diagonal
3501151.9139625
Perimeter
6064173
Area
1769299242129.1
Altitude
1750575.9569812
Surface area
1769299242129.1
Volume
9.7338519172105E+17
Height
952892.8556863