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

21497721 (number)

21497721 is an odd 8-digits composite number following 21497720 and preceding 21497722. In scientific notation, it is written as 2.1497721 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 11303712 positive integers (up to 21497721) that are relatively prime to 21497721.

Interesting facts

21497721 has 8 divisors, whose sum is 22651200
The reverse of 21497721 is 12779412
Previous prime number is 5719

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6

Name

Name	twenty-one million four hundred ninety-seven thousand seven hundred twenty-one

Notation

Scientific notation	2.1497721 × 10^7
Engineering notation	2.1497721 × 10^6

Prime Factorization of 21497721

Prime Factorization 21 × 5719 × 179

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21497721	Product of the distinct prime numbers

The prime factorization of 21497721 is 21 × 5719 × 179. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 5, 44, 10, 613, 330, 9710, 5525, 15610, 94127, 372922, 564666, 9634314, 195680, 52244542, 97277434, 224235176, 241321145, 511213358, 8816573586

Basic calculations (n = 21497721)

Multiplication

n×y

n×2	42995442
n×3	64493163
n×4	85990884
n×5	107488605

Division

n÷y

n÷2	10748860.5
n÷3	7165907
n÷3	5374430.25
n÷5	4299544.2

Exponentiation

n^y

n²	462152008193841
n³	9.9352149317409E+21
n⁴	2.135844786776E+29
n⁵	4.5915795325415E+36

Nth Root

^y√n

²√n	4636.563490345
³√n	278.05506301951
⁴√n	68.092315941999
⁵√n	29.273758415384

Divisors of 21497721

1, 21, 179, 3759, 5719, 120099, 1023701, 21497721

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	-21497720	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 21497721 can be divided by 8 positive divisors. The sum of these divisors (counting 21497721) is 1, the average is 0.125.

Base conversion 21497721

Base	System	Value
2	Binary	1010010000000011101111001
3	Ternary	1111110012022220
4	Quaternary	1102000131321
5	Quinary	21000411341
6	Senary	2044434253
8	Octal	122003571
10	Decimal	21497721
12	Duodecimal	7248989
16	Hexadecimal	1480779
20	Vigesimal	6e7461
36	Base36	csrqx

Cryptographic Hash Functions

md5	7777bfa1e8d0d147a9b8139349025df5
sha1	59016fa1d684a70e4dc5f35ec82ee3ba2275f112
sha256	c754b63e390135451e939e7a886a7a383655909dfd1de5b68cbb104dc64bf203
sha512	f7eb8aea02920b084025b1175c35de3bb735657abeb578034587cb75ada050205f8f33d76b1c03be9ebe91ee27f157ef6c5f11d0b95101f97ef3eeb3a6d7d233
ripemd-160	7af1e9614cee7ae504cf77bbc86e1b997e98e4dc

21497721 as geometric shapes

Circle

Radius = n

Diameter	42995442
Circumference	135074164.72505
Area	1.4518933537835E+15

Sphere

Radius = n

Volume	4.1616530988524E+22
Surface area	5.8075734151342E+15
Circumference	135074164.72505

Square

Length = n

Perimeter	85990884
Area	462152008193841
Diagonal	30402368.598313

Cube

Length = n

Surface area	2772912049163046
Volume	9.9352149317409E+21
Space diagonal	37235145.01894

Equilateral Triangle

Length = n

Perimeter	64493163
Area	2.0011768975293E+14
Altitude	18617572.50947

Triangular Pyramid

Length = n

Surface area	2.0011768975293E+14
Volume	1.1708763084633E+21
Height	10134122.866104