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

20987211 (number)

20987211 is an odd 8-digits composite number following 20987210 and preceding 20987212. In scientific notation, it is written as 2.0987211 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 11867904 positive integers (up to 20987211) that are relatively prime to 20987211.

Interesting facts

20987211 has 8 divisors, whose sum is 22215424
The reverse of 20987211 is 11278902
Previous prime number is 97

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

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

Notation

Scientific notation	2.0987211 × 10^7
Engineering notation	2.0987211 × 10^6

Prime Factorization of 20987211

Prime Factorization 21 × 97 × 10303

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20987211	Product of the distinct prime numbers

The prime factorization of 20987211 is 21 × 97 × 10303. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 6, 80, 29, 535, 161, 5994, 8382, 21560, 78143, 477083, 920936, 9306882, 9147587, 13531022, 34874616, 772209104, 779375951, 7585663161, 2014230434

Basic calculations (n = 20987211)

Multiplication

n×y

n×2	41974422
n×3	62961633
n×4	83948844
n×5	104936055

Division

n÷y

n÷2	10493605.5
n÷3	6995737
n÷3	5246802.75
n÷5	4197442.2

Exponentiation

n^y

n²	440463025558521
n³	9.2440904550951E+21
n⁴	1.9400767688417E+29
n⁵	4.0716800503878E+36

Nth Root

^y√n

²√n	4581.1800881432
³√n	275.83640010423
⁴√n	67.684415400764
⁵√n	29.133384842307

Divisors of 20987211

1, 21, 97, 2037, 10303, 216363, 999391, 20987211

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	-20987210	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 20987211 can be divided by 8 positive divisors. The sum of these divisors (counting 20987211) is 1, the average is 0.125.

Base conversion 20987211

Base	System	Value
2	Binary	1010000000011110101001011
3	Ternary	1110111021001010
4	Quaternary	1100003311023
5	Quinary	20333042321
6	Senary	2025455003
8	Octal	120036513
10	Decimal	20987211
12	Duodecimal	7041463
16	Hexadecimal	1403d4b
20	Vigesimal	6b380b
36	Base36	chtu3

Cryptographic Hash Functions

md5	74b547728f81648f72fbb60ea588d055
sha1	1d896bc9a2a413f85f47c3283c805f23098c8089
sha256	1d4f473f11e0e9cbe1a37385c28617444320c27830ff41203c0cbfd3fdcdd2f8
sha512	522c9a4f0493fc0cba71a019a4e63e4b3e6a66f9574d140dd36e7926e541a39722c7595034483271694755b3f7660cb86250a5ab944e463665ddb6ad2c0844a7
ripemd-160	4ca5bd51c252087eb40939bfba1faf45c5d8ad0c

20987211 as geometric shapes

Circle

Radius = n

Diameter	41974422
Circumference	131866535.79388
Area	1.3837554052726E+15

Sphere

Radius = n

Volume	3.8721555550462E+22
Surface area	5.5350216210903E+15
Circumference	131866535.79388

Square

Length = n

Perimeter	83948844
Area	440463025558521
Diagonal	29680398.432586

Cube

Length = n

Surface area	2642778153351126
Volume	9.2440904550951E+21
Space diagonal	36350915.761168

Equilateral Triangle

Length = n

Perimeter	62961633
Area	1.9072608478072E+14
Altitude	18175457.880584

Triangular Pyramid

Length = n

Surface area	1.9072608478072E+14
Volume	1.0894265077833E+21
Height	9893466.1441953