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

19990981 (number)

19990981 is an odd 8-digits composite number following 19990980 and preceding 19990982. In scientific notation, it is written as 1.9990981 × 10^7. The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors. There are 19663200 positive integers (up to 19990981) that are relatively prime to 19990981.

Interesting facts

19990981 has 4 divisors, whose sum is 20318764
The reverse of 19990981 is 18909991
Previous prime number is 61

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1

Name

Name	nineteen million nine hundred ninety thousand nine hundred eighty-one

Notation

Scientific notation	1.9990981 × 10^7
Engineering notation	1.9990981 × 10^6

Prime Factorization of 19990981

Prime Factorization 61 × 327721

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	19990981	Product of the distinct prime numbers

The prime factorization of 19990981 is 61 × 327721. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 2, 2, 24, 538, 506, 559, 8911, 87192, 74557, 802052, 420832, 6773262, 3808017, 9333072, 97167982, 835110191, 468200817, 2438800791, 7930359077

Basic calculations (n = 19990981)

Multiplication

n×y

n×2	39981962
n×3	59972943
n×4	79963924
n×5	99954905

Division

n÷y

n÷2	9995490.5
n÷3	6663660.3333333
n÷3	4997745.25
n÷5	3998196.2

Exponentiation

n^y

n²	399639321342361
n³	7.989182079808E+21
n⁴	1.5971158716298E+29
n⁵	3.192791304455E+36

Nth Root

^y√n

²√n	4471.1274864401
³√n	271.40095330389
⁴√n	66.866490011366
⁵√n	28.851395306516

Divisors of 19990981

1, 61, 327721, 19990981

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	-19990980	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 19990981 can be divided by 4 positive divisors. The sum of these divisors (counting 19990981) is 1, the average is 0.25.

Base conversion 19990981

Base	System	Value
2	Binary	1001100010000100111000101
3	Ternary	1101121122110201
4	Quaternary	1030100213011
5	Quinary	20104202411
6	Senary	1552250501
8	Octal	114204705
10	Decimal	19990981
12	Duodecimal	6840a31
16	Hexadecimal	13109c5
20	Vigesimal	64ih91
36	Base36	bwh51

Cryptographic Hash Functions

md5	485cfc5a86692ebb33cb5526979842d8
sha1	0255812a6f2159c7f4003b2a0b278f0a75da7364
sha256	220eb044394ef2016a5c58ef271f1f93ab4fcbb0a04bd1318cb901a681a010d3
sha512	0a809f3b578816f957a9d59ad8c09a982cbf04a06e31100b1de0fd0b05b61aa6312d41c17298c2031d45bcb9c30e07301a8f113d8037ad5d4e1f1bfc68279673
ripemd-160	879010a153609c47aca37afe76ec6d01243df488

19990981 as geometric shapes

Circle

Radius = n

Diameter	39981962
Circumference	125607038.09531
Area	1.2555039560148E+15

Sphere

Radius = n

Volume	3.3465007640155E+22
Surface area	5.0220158240591E+15
Circumference	125607038.09531

Square

Length = n

Perimeter	79963924
Area	399639321342361
Diagonal	28271516.455343

Cube

Length = n

Surface area	2397835928054166
Volume	7.989182079808E+21
Space diagonal	34625394.785144

Equilateral Triangle

Length = n

Perimeter	59972943
Area	1.7304890231683E+14
Altitude	17312697.392572

Triangular Pyramid

Length = n

Surface area	1.7304890231683E+14
Volume	9.4153413746105E+20
Height	9423838.8184476