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

20789981 (number)

20789981 is an odd 8-digits composite number following 20789980 and preceding 20789982. In scientific notation, it is written as 2.0789981 × 10^7. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 20777532 positive integers (up to 20789981) that are relatively prime to 20789981.

Interesting facts

20789981 has 4 divisors, whose sum is 20802432
The reverse of 20789981 is 18998702
Previous prime number is 1987

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8

Name

Name	twenty million seven hundred eighty-nine thousand nine hundred eighty-one

Notation

Scientific notation	2.0789981 × 10^7
Engineering notation	2.0789981 × 10^6

Prime Factorization of 20789981

Prime Factorization 1987 × 10463

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20789981	Product of the distinct prime numbers

The prime factorization of 20789981 is 1987 × 10463. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 1, 21, 54, 537, 175, 9693, 4196, 29399, 41416, 517473, 403942, 2227164, 5227057, 12233678, 22674821, 295196700, 350074703, 9844070645, 1547940117

Basic calculations (n = 20789981)

Multiplication

n×y

n×2	41579962
n×3	62369943
n×4	83159924
n×5	103949905

Division

n÷y

n÷2	10394990.5
n÷3	6929993.6666667
n÷3	5197495.25
n÷5	4157996.2

Exponentiation

n^y

n²	432223309980361
n³	8.9859144022488E+21
n⁴	1.8681698969038E+29
n⁵	3.8839216661402E+36

Nth Root

^y√n

²√n	4559.603162557
³√n	274.96960986486
⁴√n	67.524833672931
⁵√n	29.078420897714

Divisors of 20789981

1, 1987, 10463, 20789981

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	-20789980	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 20789981 can be divided by 4 positive divisors. The sum of these divisors (counting 20789981) is 1, the average is 0.25.

Base conversion 20789981

Base	System	Value
2	Binary	1001111010011101011011101
3	Ternary	1110010020111022
4	Quaternary	1033103223131
5	Quinary	20310234411
6	Senary	2021333525
8	Octal	117235335
10	Decimal	20789981
12	Duodecimal	6b672a5
16	Hexadecimal	13d3add
20	Vigesimal	69iej1
36	Base36	cdlnh

Cryptographic Hash Functions

md5	2fe4e218565a9a5792b7ad035c20152d
sha1	2be1985b05a01b99f797516ae10e201dd5173bd2
sha256	8d1bd31f2a875decf720090ff2dac7029b79dd41b0f39ddcd32f16b6a3a7c4e0
sha512	712628cbe14d57ed560d7478c525592180475fb6f216bfd5f73cfb9071b6c3ae1dcbb53248470c6473ca3ae13560cb2c9f78a5382fa3bdbca3aafa6f6a46e8ad
ripemd-160	e3c7f0e928cbc6716df4ef0bf07717870031cd00

20789981 as geometric shapes

Circle

Radius = n

Diameter	41579962
Circumference	130627303.15574
Area	1.3578695753446E+15

Sphere

Radius = n

Volume	3.7640110229189E+22
Surface area	5.4314783013783E+15
Circumference	130627303.15574

Square

Length = n

Perimeter	83159924
Area	432223309980361
Diagonal	29401473.091679

Cube

Length = n

Surface area	2593339859882166
Volume	8.9859144022488E+21
Space diagonal	36009303.380392

Equilateral Triangle

Length = n

Perimeter	62369943
Area	1.8715818327539E+14
Altitude	18004651.690196

Triangular Pyramid

Length = n

Surface area	1.8715818327539E+14
Volume	1.0590001681653E+21
Height	9800491.0305597