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

2021981 (number)

2021981 is an odd 7-digits composite number following 2021980 and preceding 2021982. In scientific notation, it is written as 2.021981 × 10^6. The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors. There are 1866432 positive integers (up to 2021981) that are relatively prime to 2021981.

Interesting facts

2021981 has 4 divisors, whose sum is 2177532
The reverse of 2021981 is 1891202
Previous prime number is 13

Basic properties

Is Prime? no
Number parity odd
Number length 7
Sum of Digits 23
Digital Root 5

Name

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

Notation

Scientific notation	2.021981 × 10^6
Engineering notation	2.021981 × 10^6

Prime Factorization of 2021981

Prime Factorization 13 × 155537

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	2021981	Product of the distinct prime numbers

The prime factorization of 2021981 is 13 × 155537. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 9, 83, 96, 460, 957, 5829, 2822, 49239, 74614, 303049, 651716, 2628070, 9456337, 43361040, 19864115, 781050619, 646212781, 4491890175, 6254790930

Basic calculations (n = 2021981)

Multiplication

n×y

n×2	4043962
n×3	6065943
n×4	8087924
n×5	10109905

Division

n÷y

n÷2	1010990.5
n÷3	673993.66666667
n÷3	505495.25
n÷5	404396.2

Exponentiation

n^y

n²	4088407164361
n³	8266681606601819141
n⁴	1.6715073141598E+25
n⁵	3.3797560305922E+31

Nth Root

^y√n

²√n	1421.9637829424
³√n	126.45199634655
⁴√n	37.708935054473
⁵√n	18.245485076919

Divisors of 2021981

1, 13, 155537, 2021981

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	-2021980	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 2021981 can be divided by 4 positive divisors. The sum of these divisors (counting 2021981) is 1, the average is 0.25.

Base conversion 2021981

Base	System	Value
2	Binary	111101101101001011101
3	Ternary	10210201122012
4	Quaternary	13231221131
5	Quinary	1004200411
6	Senary	111201005
8	Octal	7555135
10	Decimal	2021981
12	Duodecimal	816165
16	Hexadecimal	1eda5d
20	Vigesimal	ccej1
36	Base36	17c65

Cryptographic Hash Functions

md5	74792cba1fdf769a6abccd78b47d7634
sha1	83bef0c56b1d8ab4c0e4a5ae3174285f98e9af2c
sha256	b7c4050ef6afb3a01b2ae43edb5839372eb1add536d77dc8dbc3cf96a247745b
sha512	759c2ac70f55a21834f84f600c117ce6d077cf37577cf1dd01a3c47ec1ad13959f5fb35a59accdfa340e3b51924b79cb652f7bda5e2f6cebe7512ce03e1f5077
ripemd-160	b858ba48f3ab1821c235ca1c0e6673004a8177ab

2021981 as geometric shapes

Circle

Radius = n

Diameter	4043962
Circumference	12704481.310596
Area	12844109912440

Sphere

Radius = n

Volume	3.4627394939822E+19
Surface area	51376439649762
Circumference	12704481.310596

Square

Length = n

Perimeter	8087924
Area	4088407164361
Diagonal	2859512.9530607

Cube

Length = n

Surface area	24530442986166
Volume	8266681606601819141
Space diagonal	3502173.8239389

Equilateral Triangle

Length = n

Perimeter	6065943
Area	1770332232675.5
Altitude	1751086.9119695

Triangular Pyramid

Length = n

Surface area	1770332232675.5
Volume	9.7423777032304E+17
Height	953170.98435357