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

20686987 (number)

20686987 is an odd 8-digits composite number following 20686986 and preceding 20686988. In scientific notation, it is written as 2.0686987 × 10^7. The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors. There are 20378160 positive integers (up to 20686987) that are relatively prime to 20686987.

Interesting facts

20686987 has 4 divisors, whose sum is 20995816
The reverse of 20686987 is 78968602
Previous prime number is 67

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1

Name

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

Notation

Scientific notation	2.0686987 × 10^7
Engineering notation	2.0686987 × 10^6

Prime Factorization of 20686987

Prime Factorization 67 × 308761

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	20686987	Product of the distinct prime numbers

The prime factorization of 20686987 is 67 × 308761. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 2, 57, 57, 498, 709, 7347, 9465, 81492, 64930, 637147, 182911, 2944936, 2363602, 91857096, 34502657, 30480767, 968565370, 1536345459, 2192738221

Basic calculations (n = 20686987)

Multiplication

n×y

n×2	41373974
n×3	62060961
n×4	82747948
n×5	103434935

Division

n÷y

n÷2	10343493.5
n÷3	6895662.3333333
n÷3	5171746.75
n÷5	4137397.4

Exponentiation

n^y

n²	427951431138169
n³	8.8530256925867E+21
n⁴	1.8314242741321E+29
n⁵	3.7886650150455E+36

Nth Root

^y√n

²√n	4548.2949552552
³√n	274.51478957655
⁴√n	67.441047999384
⁵√n	29.049552614396

Divisors of 20686987

1, 67, 308761, 20686987

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	-20686986	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 20686987 can be divided by 4 positive divisors. The sum of these divisors (counting 20686987) is 1, the average is 0.25.

Base conversion 20686987

Base	System	Value
2	Binary	1001110111010100010001011
3	Ternary	1102221000012201
4	Quaternary	1032322202023
5	Quinary	20243440422
6	Senary	2015221031
8	Octal	116724213
10	Decimal	20686987
12	Duodecimal	6b17777
16	Hexadecimal	13ba88b
20	Vigesimal	695h97
36	Base36	cbe6j

Cryptographic Hash Functions

md5	f1007420e3bdbec3b8cf9ac888d28b69
sha1	62412afe83a71829147a635c3c4c467d63c921d6
sha256	107fad141adce7f34296823c212e8c5e09a1bd22bf6b19b8de7c4b81f77735d5
sha512	9356b4bf8efcd3ff57fd1bc5e1004414d4ba88d802ed6dea787ad7f3a06362a0bf9891ea209abc6142185277150155e54178f99a3ef79edd8188fc263b367a99
ripemd-160	ecb0d25989a21a8ae343eca036deba6d48575ba2

20686987 as geometric shapes

Circle

Radius = n

Diameter	41373974
Circumference	129980172.76822
Area	1.3444490721569E+15

Sphere

Radius = n

Volume	3.7083467303829E+22
Surface area	5.3777962886276E+15
Circumference	129980172.76822

Square

Length = n

Perimeter	82747948
Area	427951431138169
Diagonal	29255817.580036

Cube

Length = n

Surface area	2567708586829014
Volume	8.8530256925867E+21
Space diagonal	35830912.539517

Equilateral Triangle

Length = n

Perimeter	62060961
Area	1.8530840547578E+14
Altitude	17915456.269758

Triangular Pyramid

Length = n

Surface area	1.8530840547578E+14
Volume	1.0433390835411E+21
Height	9751939.1933453