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

20218987 (number)

20218987 is an odd 8-digits composite number following 20218986 and preceding 20218988. In scientific notation, it is written as 2.0218987 × 10^7. The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors. There are 19748736 positive integers (up to 20218987) that are relatively prime to 20218987.

Interesting facts

20218987 has 4 divisors, whose sum is 20689240
The reverse of 20218987 is 78981202
Previous prime number is 43

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	twenty million two hundred eighteen thousand nine hundred eighty-seven

Notation

Scientific notation	2.0218987 × 10^7
Engineering notation	2.0218987 × 10^6

Prime Factorization of 20218987

Prime Factorization 43 × 470209

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20218987	Product of the distinct prime numbers

The prime factorization of 20218987 is 43 × 470209. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 7, 2, 19, 261, 902, 4190, 8110, 797, 64305, 377120, 636459, 6824030, 5550295, 87024729, 5968455, 766240373, 612814544, 6629278611, 464657683

Basic calculations (n = 20218987)

Multiplication

n×y

n×2	40437974
n×3	60656961
n×4	80875948
n×5	101094935

Division

n÷y

n÷2	10109493.5
n÷3	6739662.3333333
n÷3	5054746.75
n÷5	4043797.4

Exponentiation

n^y

n²	408807435306169
n³	8.2656722199588E+21
n⁴	1.6712351916161E+29
n⁵	3.3790682613228E+36

Nth Root

^y√n

²√n	4496.5527907498
³√n	272.42887125947
⁴√n	67.056340421692
⁵√n	28.916909686798

Divisors of 20218987

1, 43, 470209, 20218987

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	-20218986	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 20218987 can be divided by 4 positive divisors. The sum of these divisors (counting 20218987) is 1, the average is 0.25.

Base conversion 20218987

Base	System	Value
2	Binary	1001101001000010001101011
3	Ternary	1102001020020101
4	Quaternary	1031020101223
5	Quinary	20134001422
6	Senary	2001210231
8	Octal	115102153
10	Decimal	20218987
12	Duodecimal	6930977
16	Hexadecimal	134846b
20	Vigesimal	667797
36	Base36	c1d2j

Cryptographic Hash Functions

md5	b73d78d7a87001d36a4a8e405a62ad53
sha1	d12812d21a6dd1da3a4f0ba5673af8d70c5b405f
sha256	ee28ceb425177f0a4db4839358ca6c234765ea2c8c8935c115f9d165cd5789d8
sha512	df78b31f9272442cc65276a63cc65da0b3ac9d034e147a4f0b511ea56bd5832ea57cddacc7a46da650eb5c6ba8fd1f4b6120f776004cb1b75f71b3449be18ebe
ripemd-160	cfedda7fd9a0d4e77336563a88e58147a5be9356

20218987 as geometric shapes

Circle

Radius = n

Diameter	40437974
Circumference	127039642.04446
Area	1.2843064354907E+15

Sphere

Radius = n

Volume	3.4623166830938E+22
Surface area	5.137225741963E+15
Circumference	127039642.04446

Square

Length = n

Perimeter	80875948
Area	408807435306169
Diagonal	28593965.632845

Cube

Length = n

Surface area	2452844611837014
Volume	8.2656722199588E+21
Space diagonal	35020312.761575

Equilateral Triangle

Length = n

Perimeter	60656961
Area	1.7701881211555E+14
Altitude	17510156.380787

Triangular Pyramid

Length = n

Surface area	1.7701881211555E+14
Volume	9.7411881296635E+20
Height	9531321.8776151