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

20031981 (number)

20031981 is an odd 8-digits composite number following 20031980 and preceding 20031982. In scientific notation, it is written as 2.0031981 × 10^7. The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors. There are 13354652 positive integers (up to 20031981) that are relatively prime to 20031981.

Interesting facts

20031981 has 4 divisors, whose sum is 26709312
The reverse of 20031981 is 18913002
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6

Name

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

Notation

Scientific notation	2.0031981 × 10^7
Engineering notation	2.0031981 × 10^6

Prime Factorization of 20031981

Prime Factorization 3 × 6677327

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20031981	Product of the distinct prime numbers

The prime factorization of 20031981 is 3 × 6677327. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 10, 49, 17, 420, 162, 7368, 2471, 54920, 2755, 705766, 46550, 6468067, 2919146, 11931155, 80338086, 132725194, 179152991, 8697867334, 9384655595

Basic calculations (n = 20031981)

Multiplication

n×y

n×2	40063962
n×3	60095943
n×4	80127924
n×5	100159905

Division

n÷y

n÷2	10015990.5
n÷3	6677327
n÷3	5007995.25
n÷5	4006396.2

Exponentiation

n^y

n²	401280262784361
n³	8.0384385997713E+21
n⁴	1.6102584930029E+29
n⁵	3.2256667536922E+36

Nth Root

^y√n

²√n	4475.7101112561
³√n	271.58636759248
⁴√n	66.900748211482
⁵√n	28.863220018655

Divisors of 20031981

1, 3, 6677327, 20031981

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	-20031980	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 20031981 can be divided by 4 positive divisors. The sum of these divisors (counting 20031981) is 1, the average is 0.25.

Base conversion 20031981

Base	System	Value
2	Binary	1001100011010100111101101
3	Ternary	1101200201201020
4	Quaternary	1030122213231
5	Quinary	20112010411
6	Senary	1553204353
8	Octal	114324755
10	Decimal	20031981
12	Duodecimal	68606b9
16	Hexadecimal	131a9ed
20	Vigesimal	653jj1
36	Base36	bxcrx

Cryptographic Hash Functions

md5	d8104cd02aa63e3868d2ae13c41e240e
sha1	32353d745ea63f7eec7c7a360fc6e9e5c90931ba
sha256	f1f0ce217058dc2bc28b75ffc582e6bd3bbfe0929f547a4e047df92df07542d2
sha512	dd6cc8983c483ddc880e665c3370b0a78537f06c19f8ff2035e1e936bce14f0aced699314d344e9b07b405129deb85c1c71cba803af5f41e36830ace34625f09
ripemd-160	be473d1a4712d6d3f5f00fa60368669bcf577f57

20031981 as geometric shapes

Circle

Radius = n

Diameter	40063962
Circumference	125864648.6929
Area	1.2606591255939E+15

Sphere

Radius = n

Volume	3.3671332868499E+22
Surface area	5.0426365023757E+15
Circumference	125864648.6929

Square

Length = n

Perimeter	80127924
Area	401280262784361
Diagonal	28329499.2114

Cube

Length = n

Surface area	2407681576706166
Volume	8.0384385997713E+21
Space diagonal	34696408.868254

Equilateral Triangle

Length = n

Perimeter	60095943
Area	1.7375945080428E+14
Altitude	17348204.434127

Triangular Pyramid

Length = n

Surface area	1.7375945080428E+14
Volume	9.4733907400833E+20
Height	9443166.4038001