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

19987979 (number)

19987979 is an odd 8-digits composite number following 19987978 and preceding 19987980. In scientific notation, it is written as 1.9987979 × 10^7. The sum of its digits is 59. It has a total of 3 prime factors and 8 positive divisors. There are 18136800 positive integers (up to 19987979) that are relatively prime to 19987979.

Interesting facts

19987979 has 8 divisors, whose sum is 21846000
The reverse of 19987979 is 97978991
Previous prime number is 661

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 59
Digital Root 5

Name

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

Notation

Scientific notation	1.9987979 × 10^7
Engineering notation	1.9987979 × 10^6

Prime Factorization of 19987979

Prime Factorization 11 × 661 × 2749

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	19987979	Product of the distinct prime numbers

The prime factorization of 19987979 is 11 × 661 × 2749. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 7, 5, 52, 362, 770, 8488, 7901, 59135, 28023, 460844, 904386, 1615068, 6854062, 30571116, 64593048, 118198763, 454455767, 5299586272, 4891489054

Basic calculations (n = 19987979)

Multiplication

n×y

n×2	39975958
n×3	59963937
n×4	79951916
n×5	99939895

Division

n÷y

n÷2	9993989.5
n÷3	6662659.6666667
n÷3	4996994.75
n÷5	3997595.8

Exponentiation

n^y

n²	399519304504441
n³	7.9855834685294E+21
n⁴	1.5961567467171E+29
n⁵	3.190394753409E+36

Nth Root

^y√n

²√n	4470.7917643299
³√n	271.3873674032
⁴√n	66.863979572935
⁵√n	28.850528744823

Divisors of 19987979

1, 11, 661, 2749, 7271, 30239, 1817089, 19987979

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-19987978	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 19987979 can be divided by 8 positive divisors. The sum of these divisors (counting 19987979) is 1, the average is 0.125.

Base conversion 19987979

Base	System	Value
2	Binary	1001100001111111000001011
3	Ternary	1101121111100112
4	Quaternary	1030033320023
5	Quinary	20104103404
6	Senary	1552224535
8	Octal	114177013
10	Decimal	19987979
12	Duodecimal	683b14b
16	Hexadecimal	130fe0b
20	Vigesimal	64i9ij
36	Base36	bwetn

Cryptographic Hash Functions

md5	50bb545f15d9a3606c3a911c9fd27583
sha1	2563db5c7f2765c0cbc04345030301258f29d228
sha256	d8fd5884b58f73ed69636aefeca7306fdd07956c0a0e04e1e571f212fe4603b3
sha512	7c78ff3e4f2721b70810b288b1c5922415171d1dccb9b618a0c20fd9dcaaf15e6f1a9d71bd40c3786c0f8c0362adcb2379bbf47b174dfd871b9e502a3b58f5e4
ripemd-160	8af9185298db6dad938a21aa76345593bd82df57

19987979 as geometric shapes

Circle

Radius = n

Diameter	39975958
Circumference	125588175.97301
Area	1.2551269119985E+15

Sphere

Radius = n

Volume	3.344993381248E+22
Surface area	5.0205076479938E+15
Circumference	125588175.97301

Square

Length = n

Perimeter	79951916
Area	399519304504441
Diagonal	28267270.986229

Cube

Length = n

Surface area	2397115827026646
Volume	7.9855834685294E+21
Space diagonal	34620195.16862

Equilateral Triangle

Length = n

Perimeter	59963937
Area	1.7299693350157E+14
Altitude	17310097.58431

Triangular Pyramid

Length = n

Surface area	1.7299693350157E+14
Volume	9.4111003705472E+20
Height	9422423.6620762