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

21492821 (number)

21492821 is an odd 8-digits composite number following 21492820 and preceding 21492822. In scientific notation, it is written as 2.1492821 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 18361728 positive integers (up to 21492821) that are relatively prime to 21492821.

Interesting facts

21492821 has 12 divisors, whose sum is 25084332
The reverse of 21492821 is 12829412
Previous prime number is 1013

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

Name	twenty-one million four hundred ninety-two thousand eight hundred twenty-one

Notation

Scientific notation	2.1492821 × 10^7
Engineering notation	2.1492821 × 10^6

Prime Factorization of 21492821

Prime Factorization 7 × 7 × 1013 × 433

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	3070403	Product of the distinct prime numbers

The prime factorization of 21492821 is 7 × 7 × 1013 × 433. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 7, 35, 40, 309, 486, 1678, 770, 19939, 84785, 204928, 636757, 7511203, 3896886, 98035841, 68878883, 448906258, 359610253, 1374236272, 8902395506

Basic calculations (n = 21492821)

Multiplication

n×y

n×2	42985642
n×3	64478463
n×4	85971284
n×5	107464105

Division

n÷y

n÷2	10746410.5
n÷3	7164273.6666667
n÷3	5373205.25
n÷5	4298564.2

Exponentiation

n^y

n²	461941354538041
n³	9.9284228455837E+21
n⁴	2.1338981503244E+29
n⁵	4.5863490977153E+36

Nth Root

^y√n

²√n	4636.0350516363
³√n	278.03393561196
⁴√n	68.088435520551
⁵√n	29.272423813489

Divisors of 21492821

1, 7, 49, 433, 1013, 3031, 7091, 21217, 49637, 438629, 3070403, 21492821

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21492820	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21492821 can be divided by 12 positive divisors. The sum of these divisors (counting 21492821) is 1, the average is 0.083333333333333.

Base conversion 21492821

Base	System	Value
2	Binary	1010001111111010001010101
3	Ternary	1111102221121102
4	Quaternary	1101333101111
5	Quinary	21000232241
6	Senary	2044355445
8	Octal	121772125
10	Decimal	21492821
12	Duodecimal	7245b85
16	Hexadecimal	147f455
20	Vigesimal	6e6c11
36	Base36	csnyt

Cryptographic Hash Functions

md5	9bcbb16fd6261843efc6b270c79a5802
sha1	875f18ba233cdad486f6d80ba2971a2b25e5fcf0
sha256	d3e21a4d996ec8173e0ca7f44ae2462729fc93a50aba4182fd737f965c1f5b15
sha512	9cd9913fb4b102ac9784c12b54a95621370ec47fc76931239873c0a238722d8ff846cb3aeb3b7681afbc29db2db6db77a60d25795ee2f82fb4919403d88b12b8
ripemd-160	5e0dc6ab563df50ed88267e0884812484c9a24a2

21492821 as geometric shapes

Circle

Radius = n

Diameter	42985642
Circumference	135043377.11704
Area	1.451231565806E+15

Sphere

Radius = n

Volume	4.1588080364558E+22
Surface area	5.8049262632241E+15
Circumference	135043377.11704

Square

Length = n

Perimeter	85971284
Area	461941354538041
Diagonal	30395438.951857

Cube

Length = n

Surface area	2771648127228246
Volume	9.9284228455837E+21
Space diagonal	37226657.969983

Equilateral Triangle

Length = n

Perimeter	64478463
Area	2.0002647404427E+14
Altitude	18613328.984992

Triangular Pyramid

Length = n

Surface area	2.0002647404427E+14
Volume	1.1700758534333E+21
Height	10131812.983952