2021988 is an even 7-digits composite number following 2021987
and preceding 2021989 . In scientific notation, it is written as 2.021988 × 10^6.
The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors.
There are 673992 positive integers (up to 2021988) that are relatively prime to 2021988.
2021988 has 12 divisors, whose sum is 4718000
The reverse of 2021988 is 8891202
Previous prime number is 3
Is Prime? no
Number parity even
Number length 7
Sum of Digits 30
Digital Root 3
Name
two million twenty-one thousand nine hundred eighty-eight
Scientific notation
2.021988 × 10^6
Engineering notation
2.021988 × 10^6
Prime Factorization
2 × 2 × 3 × 168499
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1010994
Product of the distinct prime numbers
The prime factorization of 2021988 is 2 × 2 × 3 × 168499.
Since it has a total of 4 prime factors.
3 , 3 , 13 , 12 , 364 , 926 , 7042 , 2288 , 4395 , 43112 , 840729 , 36998 , 415864 , 4259688 , 8965629 , 47400155 , 713229303 , 923689915 , 630906529 , 6260979714
n×2
4043976
n×3
6065964
n×4
8087952
n×5
10109940
n÷2
1010994
n÷3
673996
n÷3
505497
n÷5
404397.6
n2
4088435472144
n3
8266767463449502272
n4
1.6715304609885E+25
n5
3.3798145337533E+31
2 √n
1421.9662443251
3 √n
126.45214226993
4 √n
37.708967691056
5 √n
18.245497709899
1 , 2 , 3 , 4 , 6 , 12 , 168499 , 336998 , 505497 , 673996 , 1010994 , 2021988
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
-2021987
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 2021988 can be divided by 12 positive divisors.
The sum of these divisors (counting 2021988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111101101101001100100
3
Ternary
10210201122110
4
Quaternary
13231221210
5
Quinary
1004200423
6
Senary
111201020
8
Octal
7555144
10
Decimal
2021988
12
Duodecimal
816170
16
Hexadecimal
1eda64
20
Vigesimal
ccej8
36
Base36
17c6c
md5
6ed11dd9af02005a5a1062e32c7c4237
sha1
862303ccf13ab0a480743d1ef1f46746f56e3c81
sha256
9b87a4d9da4bba9770719eb44c8d2bdb45b9e41cdb80210eacf5de1cfc9dedc6
sha512
98d0aa53605b43cd8d5a09e9415ada29016f5099dfe502e97458717764b967efe07026b4325348947cfff2f7baae56497e4897cc3915b4f03a37f7533035d4dd
ripemd-160
b4911c95ba0830ce943d9d9fde36986e89ed2d32
Diameter
4043976
Circumference
12704525.292893
Area
12844198843964
Volume
3.4627754576144E+19
Surface area
51376795375854
Circumference
12704525.292893
Perimeter
8087952
Area
4088435472144
Diagonal
2859522.8525556
Surface area
24530612832864
Volume
8266767463449502272
Space diagonal
3502185.9482946
Perimeter
6065964
Area
1770344490305.1
Altitude
1751092.9741473
Surface area
1770344490305.1
Volume
9.7424788864958E+17
Height
953174.28418522