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

18986989 (number)

18986989 is an odd 8-digits composite number following 18986988 and preceding 18986990. In scientific notation, it is written as 1.8986989 × 10^7. The sum of its digits is 58. It has a total of 2 prime factors and 4 positive divisors. There are 16274556 positive integers (up to 18986989) that are relatively prime to 18986989.

Interesting facts

18986989 has 4 divisors, whose sum is 21699424
The reverse of 18986989 is 98968981
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 58
Digital Root 4

Name

Name	eighteen million nine hundred eighty-six thousand nine hundred eighty-nine

Notation

Scientific notation	1.8986989 × 10^7
Engineering notation	1.8986989 × 10^6

Prime Factorization of 18986989

Prime Factorization 7 × 2712427

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	18986989	Product of the distinct prime numbers

The prime factorization of 18986989 is 7 × 2712427. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 9, 92, 15, 180, 308, 4183, 9234, 83336, 11111, 59705, 984958, 4904648, 2103754, 13915641, 51916809, 293729248, 568883194, 7735821518, 6816891161

Basic calculations (n = 18986989)

Multiplication

n×y

n×2	37973978
n×3	56960967
n×4	75947956
n×5	94934945

Division

n÷y

n÷2	9493494.5
n÷3	6328996.3333333
n÷3	4746747.25
n÷5	3797397.8

Exponentiation

n^y

n²	360505751286121
n³	6.8449187341063E+21
n⁴	1.2996439671037E+29
n⁵	2.4676325707314E+36

Nth Root

^y√n

²√n	4357.4062238905
³√n	266.77924118476
⁴√n	66.010652351651
⁵√n	28.55559539222

Divisors of 18986989

1, 7, 2712427, 18986989

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	-18986988	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 18986989 can be divided by 4 positive divisors. The sum of these divisors (counting 18986989) is 1, the average is 0.25.

Base conversion 18986989

Base	System	Value
2	Binary	1001000011011011111101101
3	Ternary	1022201122020211
4	Quaternary	1020123133231
5	Quinary	14330040424
6	Senary	1514542421
8	Octal	110333755
10	Decimal	18986989
12	Duodecimal	6437a11
16	Hexadecimal	121b7ed
20	Vigesimal	5id799
36	Base36	baygd

Cryptographic Hash Functions

md5	df808e40080971ab9bee0d902ec0aa65
sha1	2a906deea282868148fb2148bda57e9f2fbdd0c7
sha256	70337575b6c38b71aeea438619770e1583fdcafb65696414fd1e388cbf1e74e4
sha512	c9d0ceeb6c3561cd5cb8ac4822afbca405eb2a09b08b19fa05659af5a78e5881d01cdbbfbdb8815004aaf1afba967eda1209818856e8e6462346256f93172366
ripemd-160	e65d064d353832fb4a3b2891283ef8551ec79c3c

18986989 as geometric shapes

Circle

Radius = n

Diameter	37973978
Circumference	119298770.31238
Area	1.1325622198173E+15

Sphere

Radius = n

Volume	2.8671928545983E+22
Surface area	4.5302488792694E+15
Circumference	119298770.31238

Square

Length = n

Perimeter	75947956
Area	360505751286121
Diagonal	26851657.352429

Cube

Length = n

Surface area	2163034507716726
Volume	6.8449187341063E+21
Space diagonal	32886429.630751

Equilateral Triangle

Length = n

Perimeter	56960967
Area	1.5610356941209E+14
Altitude	16443214.815376

Triangular Pyramid

Length = n

Surface area	1.5610356941209E+14
Volume	8.0668140892624E+20
Height	8950552.4508096