Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

1981821 (number)

1981821 is an odd 7-digits composite number following 1981820 and preceding 1981822. In scientific notation, it is written as 1.981821 × 10^6. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 1321212 positive integers (up to 1981821) that are relatively prime to 1981821.

Interesting facts

1981821 has 4 divisors, whose sum is 2642432
The reverse of 1981821 is 1281891
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 7
Sum of Digits 30
Digital Root 3

Name

Name	one million nine hundred eighty-one thousand eight hundred twenty-one

Notation

Scientific notation	1.981821 × 10^6
Engineering notation	1.981821 × 10^6

Prime Factorization of 1981821

Prime Factorization 3 × 660607

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	1981821	Product of the distinct prime numbers

The prime factorization of 1981821 is 3 × 660607. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 9, 26, 4, 416, 816, 1165, 7985, 85893, 33794, 722831, 705342, 116702, 4414148, 12400805, 61093115, 603578048, 66399470, 875902187, 2605136133

Basic calculations (n = 1981821)

Multiplication

n×y

n×2	3963642
n×3	5945463
n×4	7927284
n×5	9909105

Division

n÷y

n÷2	990910.5
n÷3	660607
n÷3	495455.25
n÷5	396364.2

Exponentiation

n^y

n²	3927614476041
n³	7783828848522050661
n⁴	1.5426155472407E+25
n⁵	3.0571878864481E+31

Nth Root

^y√n

²√n	1407.7716434138
³√n	125.60920744028
⁴√n	37.520283093466
⁵√n	18.172425002593

Divisors of 1981821

1, 3, 660607, 1981821

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	-1981820	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 1981821 can be divided by 4 positive divisors. The sum of these divisors (counting 1981821) is 1, the average is 0.25.

Base conversion 1981821

Base	System	Value
2	Binary	111100011110101111101
3	Ternary	10201200112210
4	Quaternary	13203311331
5	Quinary	1001404241
6	Senary	110251033
8	Octal	7436575
10	Decimal	1981821
12	Duodecimal	7b6a79
16	Hexadecimal	1e3d7d
20	Vigesimal	c7eb1
36	Base36	16h6l

Cryptographic Hash Functions

md5	dc4eeb4195b243d6fcfb0b3160cf9221
sha1	0081bc2a9c24d2d6cea863a961b9d49010f6b595
sha256	655be5bfb18ec07c0ecfb596b8fcf59698969f7471e64bf23234c967942f171a
sha512	09665eff55b6fcdb39ae847d8c517064c393ab537562144097cc442a6b41de12d11da6e05b0e9dd71616fa1808377daf9ae0d3d9df8de5b3e1aa956af05d4c0d
ripemd-160	cb4c21874d1eebef255edc55d673c322e60a731b

1981821 as geometric shapes

Circle

Radius = n

Diameter	3963642
Circumference	12452148.58866
Area	12338964784063

Sphere

Radius = n

Volume	3.2604826036423E+19
Surface area	49355859136253
Circumference	12452148.58866

Square

Length = n

Perimeter	7927284
Area	3927614476041
Diagonal	2802718.1363958

Cube

Length = n

Surface area	23565686856246
Volume	7783828848522050661
Space diagonal	3432614.663507

Equilateral Triangle

Length = n

Perimeter	5945463
Area	1700706956261.5
Altitude	1716307.3317535

Triangular Pyramid

Length = n

Surface area	1700706956261.5
Volume	9.1733302706424E+17
Height	934239.3787986