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

21000819 (number)

21000819 is an odd 8-digits composite number following 21000818 and preceding 21000820. In scientific notation, it is written as 2.1000819 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 12000456 positive integers (up to 21000819) that are relatively prime to 21000819.

Interesting facts

21000819 has 8 divisors, whose sum is 32001280
The reverse of 21000819 is 91800012
Previous prime number is 7

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	twenty-one million eight hundred nineteen

Notation

Scientific notation	2.1000819 × 10^7
Engineering notation	2.1000819 × 10^6

Prime Factorization of 21000819

Prime Factorization 3 × 7 × 1000039

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21000819	Product of the distinct prime numbers

The prime factorization of 21000819 is 3 × 7 × 1000039. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 3, 93, 49, 875, 514, 1417, 8886, 32646, 93457, 899323, 488852, 8661423, 2636742, 93318221, 6979528, 570344978, 308675993, 3509478294, 5733718877

Basic calculations (n = 21000819)

Multiplication

n×y

n×2	42001638
n×3	63002457
n×4	84003276
n×5	105004095

Division

n÷y

n÷2	10500409.5
n÷3	7000273
n÷3	5250204.75
n÷5	4200163.8

Exponentiation

n^y

n²	441034398670761
n³	9.2620835792585E+21
n⁴	1.9451134081088E+29
n⁵	4.0848974618166E+36

Nth Root

^y√n

²√n	4582.6650543106
³√n	275.89600419292
⁴√n	67.695384291033
⁵√n	29.137161850306

Divisors of 21000819

1, 3, 7, 21, 1000039, 3000117, 7000273, 21000819

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	-21000818	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 21000819 can be divided by 8 positive divisors. The sum of these divisors (counting 21000819) is 1, the average is 0.125.

Base conversion 21000819

Base	System	Value
2	Binary	1010000000111001001110011
3	Ternary	1110111221201010
4	Quaternary	1100013021303
5	Quinary	20334011234
6	Senary	2030042003
8	Octal	120071163
10	Decimal	21000819
12	Duodecimal	7049303
16	Hexadecimal	1407273
20	Vigesimal	6b520j
36	Base36	ci4c3

Cryptographic Hash Functions

md5	52acabe387399358d6dcc1aef27d9ad0
sha1	fe7cf4c0b2f549eaaa3efa3531613af1745a63e3
sha256	d55b2794197c09c49a69d19c9d9621908f1e12e4eeaf739dbc08402bddc456a3
sha512	2bac0588f4d78d2c28a42d6929d0bdba43461816f9a8de3814883d7bd712b36b7ca324ee3db28bf861bf873f0e2ae1c57bd562509a0e34705a6dbc9d9b4faf44
ripemd-160	94ece4e3a1104ece7265bd21a0e4de609b26af18

21000819 as geometric shapes

Circle

Radius = n

Diameter	42001638
Circumference	131952037.37954
Area	1.3855504268445E+15

Sphere

Radius = n

Volume	3.8796924972711E+22
Surface area	5.5422017073778E+15
Circumference	131952037.37954

Square

Length = n

Perimeter	84003276
Area	441034398670761
Diagonal	29699643.050743

Cube

Length = n

Surface area	2646206392024566
Volume	9.2620835792585E+21
Space diagonal	36374485.508558

Equilateral Triangle

Length = n

Perimeter	63002457
Area	1.9097349659584E+14
Altitude	18187242.754279

Triangular Pyramid

Length = n

Surface area	1.9097349659584E+14
Volume	1.0915470178017E+21
Height	9899881.0169142