2001978 is an even 7-digits composite number following 2001977
and preceding 2001979 . In scientific notation, it is written as 2.001978 × 10^6.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 606600 positive integers (up to 2001978) that are relatively prime to 2001978.
2001978 has 8 divisors, whose sum is 3033600
The reverse of 2001978 is 8791002
Previous prime number is 99
Is Prime? no
Number parity even
Number length 7
Sum of Digits 27
Digital Root 9
Name
two million one thousand nine hundred seventy-eight
Scientific notation
2.001978 × 10^6
Engineering notation
2.001978 × 10^6
Prime Factorization
2 × 99 × 10111
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
2001978
Product of the distinct prime numbers
The prime factorization of 2001978 is 2 × 99 × 10111.
Since it has a total of 3 prime factors.
2 , 4 , 38 , 62 , 496 , 93 , 5881 , 6325 , 91376 , 20837 , 703775 , 80121 , 9873401 , 6847768 , 1597440 , 22070976 , 380795645 , 69088564 , 4803529131 , 1320174011
n×2
4003956
n×3
6005934
n×4
8007912
n×5
10009890
n÷2
1000989
n÷3
667326
n÷3
500494.5
n÷5
400395.6
n2
4007915912484
n3
8023759482642893352
n4
1.6063389961542E+25
n5
3.2158553308429E+31
2 √n
1414.9127181561
3 √n
126.03362670145
4 √n
37.61532557557
5 √n
18.209241682513
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
-2001977
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 2001978 can be divided by 8 positive divisors.
The sum of these divisors (counting 2001978) is 1, the average is 0.125.
Base
System
Value
2
Binary
111101000110000111010
3
Ternary
10202201012100
4
Quaternary
13220300322
5
Quinary
1003030403
6
Senary
110524230
8
Octal
7506072
10
Decimal
2001978
12
Duodecimal
806676
16
Hexadecimal
1e8c3a
20
Vigesimal
ca4ii
36
Base36
16wqi
md5
7f446334aa550f3394417ec44951369c
sha1
44fb02c729f511029cb131f421615627cff40636
sha256
11709bf2700d8ecb030df05623ad8af84fe3bf81eab1abd60338467e8dd3e793
sha512
942d4967f078513f34a38f8f6f98f36d7c773fdaed7cc9d141ab7d98b5a04e6b370f2ed5e6d77cda9a7f717a3c488dee0822759db3ed7efb6150b93b94653300
ripemd-160
307ca1b8321f71cbc2aefb0063a6e8c43b996692
Diameter
4003956
Circumference
12578798.754897
Area
12591239186865
Volume
3.3609845126456E+19
Surface area
50364956747461
Circumference
12578798.754897
Perimeter
8007912
Area
4007915912484
Diagonal
2831224.4391726
Surface area
24047495474904
Volume
8023759482642893352
Space diagonal
3467527.6116351
Perimeter
6005934
Area
1735478498221.5
Altitude
1733763.8058176
Surface area
1735478498221.5
Volume
9.4560912346444E+17
Height
943741.47972419