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

20990985 (number)

20990985 is an odd 8-digits composite number following 20990984 and preceding 20990986. In scientific notation, it is written as 2.0990985 × 10^7. The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors. There are 11195184 positive integers (up to 20990985) that are relatively prime to 20990985.

Interesting facts

20990985 has 8 divisors, whose sum is 33585600
The reverse of 20990985 is 58909902
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

Name	twenty million nine hundred ninety thousand nine hundred eighty-five

Notation

Scientific notation	2.0990985 × 10^7
Engineering notation	2.0990985 × 10^6

Prime Factorization of 20990985

Prime Factorization 5 × 3 × 1399399

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20990985	Product of the distinct prime numbers

The prime factorization of 20990985 is 5 × 3 × 1399399. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 2, 17, 33, 955, 202, 8638, 7276, 51958, 58989, 278976, 172607, 794897, 4445396, 27689436, 22643139, 452013336, 460508161, 7770897321, 8954680891

Basic calculations (n = 20990985)

Multiplication

n×y

n×2	41981970
n×3	62972955
n×4	83963940
n×5	104954925

Division

n÷y

n÷2	10495492.5
n÷3	6996995
n÷3	5247746.25
n÷5	4198197

Exponentiation

n^y

n²	440621451270225
n³	9.2490782742915E+21
n⁴	1.9414726331948E+29
n⁵	4.0753422921302E+36

Nth Root

^y√n

²√n	4581.5919722297
³√n	275.85293309633
⁴√n	67.687458012764
⁵√n	29.134432542133

Divisors of 20990985

1, 3, 5, 15, 1399399, 4198197, 6996995, 20990985

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	-20990984	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 20990985 can be divided by 8 positive divisors. The sum of these divisors (counting 20990985) is 1, the average is 0.125.

Base conversion 20990985

Base	System	Value
2	Binary	1010000000100110000001001
3	Ternary	1110111110012220
4	Quaternary	1100010300021
5	Quinary	20333202420
6	Senary	2025524253
8	Octal	120046011
10	Decimal	20990985
12	Duodecimal	7043689
16	Hexadecimal	1404c09
20	Vigesimal	6b3h95
36	Base36	chwqx

Cryptographic Hash Functions

md5	e4ebbb33aa23634c395650aa930d1239
sha1	129faf6422195ceb68ba0bdc6315f3a68025b668
sha256	1baf95f9a1b6e34dbb5e199391c7aa7258f5821d5fa32a8e664a7884f44fe7c4
sha512	814a69ab5b835405d9e76a0529b719959861b76fb6677cbf42e3f18ea30d8394801d18c50043d6eef0f5beeab9fecd57061e861c344581a1d598532db23a04a2
ripemd-160	83e02b53c4e277e87c64701495b7a49efc44462d

20990985 as geometric shapes

Circle

Radius = n

Diameter	41981970
Circumference	131890248.53523
Area	1.3842531143246E+15

Sphere

Radius = n

Volume	3.8742448478655E+22
Surface area	5.5370124572984E+15
Circumference	131890248.53523

Square

Length = n

Perimeter	83963940
Area	440621451270225
Diagonal	29685735.67457

Cube

Length = n

Surface area	2643728707621350
Volume	9.2490782742915E+21
Space diagonal	36357452.520916

Equilateral Triangle

Length = n

Perimeter	62972955
Area	1.9079468512619E+14
Altitude	18178726.260458

Triangular Pyramid

Length = n

Surface area	1.9079468512619E+14
Volume	1.0900143279128E+21
Height	9895245.2248567