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

19987913 (number)

19987913 is an odd 8-digits composite number following 19987912 and preceding 19987914. In scientific notation, it is written as 1.9987913 × 10^7. The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors. There are 18170820 positive integers (up to 19987913) that are relatively prime to 19987913.

Interesting facts

19987913 has 4 divisors, whose sum is 21805008
The reverse of 19987913 is 31978991
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2

Name

Name	nineteen million nine hundred eighty-seven thousand nine hundred thirteen

Notation

Scientific notation	1.9987913 × 10^7
Engineering notation	1.9987913 × 10^6

Prime Factorization of 19987913

Prime Factorization 11 × 1817083

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	19987913	Product of the distinct prime numbers

The prime factorization of 19987913 is 11 × 1817083. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 7, 34, 1, 19, 491, 600, 3980, 90532, 9639, 20472, 461170, 1005712, 6297299, 22010860, 83355093, 742885670, 950863173, 4963373431, 6739950383

Basic calculations (n = 19987913)

Multiplication

n×y

n×2	39975826
n×3	59963739
n×4	79951652
n×5	99939565

Division

n÷y

n÷2	9993956.5
n÷3	6662637.6666667
n÷3	4996978.25
n÷5	3997582.6

Exponentiation

n^y

n²	399516666095569
n³	7.9855043639683E+21
n⁴	1.5961356648812E+29
n⁵	3.1903420805842E+36

Nth Root

^y√n

²√n	4470.7843830809
³√n	271.38706869723
⁴√n	66.863924376908
⁵√n	28.850509691998

Divisors of 19987913

1, 11, 1817083, 19987913

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	-19987912	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 19987913 can be divided by 4 positive divisors. The sum of these divisors (counting 19987913) is 1, the average is 0.25.

Base conversion 19987913

Base	System	Value
2	Binary	1001100001111110111001001
3	Ternary	1101121111021002
4	Quaternary	1030033313021
5	Quinary	20104103123
6	Senary	1552224345
8	Octal	114176711
10	Decimal	19987913
12	Duodecimal	683b0b5
16	Hexadecimal	130fdc9
20	Vigesimal	64i9fd
36	Base36	bwert

Cryptographic Hash Functions

md5	3e6eced7d861c65ebecea384cafe33b6
sha1	92f48780cf00785880f7eb407e491b56f5817bbe
sha256	f6814e342d880574bd36037b7fcdde8860713f28321f0ac9378d5d4d4e158b23
sha512	ae9a91de5e86838e8ed582ed3ae2920dd1a875f1995e5b2223590161ede6054a2d8062c84da04fd696a913c6b68639beaf8e1920fe51e2523e4d6a45d00130dc
ripemd-160	fb162821c6c16a0bdf50d1bd3ce34922a97ae221

19987913 as geometric shapes

Circle

Radius = n

Diameter	39975826
Circumference	125587761.28278
Area	1.2551186231925E+15

Sphere

Radius = n

Volume	3.3449602460069E+22
Surface area	5.0204744927701E+15
Circumference	125587761.28278

Square

Length = n

Perimeter	79951652
Area	399516666095569
Diagonal	28267177.648133

Cube

Length = n

Surface area	2397099996573414
Volume	7.9855043639683E+21
Space diagonal	34620080.853266

Equilateral Triangle

Length = n

Perimeter	59963739
Area	1.7299579103701E+14
Altitude	17310040.426633

Triangular Pyramid

Length = n

Surface area	1.7299579103701E+14
Volume	9.4110071449279E+20
Height	9422392.5493778