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

21406721 (number)

21406721 is an odd 8-digits composite number following 21406720 and preceding 21406722. In scientific notation, it is written as 2.1406721 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 17550720 positive integers (up to 21406721) that are relatively prime to 21406721.

Interesting facts

21406721 has 8 divisors, whose sum is 25528704
The reverse of 21406721 is 12760412
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

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

Notation

Scientific notation	2.1406721 × 10^7
Engineering notation	2.1406721 × 10^6

Prime Factorization of 21406721

Prime Factorization 7 × 23 × 132961

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21406721	Product of the distinct prime numbers

The prime factorization of 21406721 is 7 × 23 × 132961. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 1, 62, 55, 30, 462, 7892, 4680, 74322, 57662, 605475, 800702, 3794807, 4762458, 87921270, 93058766, 868574424, 323120100, 3430688945, 7494849574

Basic calculations (n = 21406721)

Multiplication

n×y

n×2	42813442
n×3	64220163
n×4	85626884
n×5	107033605

Division

n÷y

n÷2	10703360.5
n÷3	7135573.6666667
n÷3	5351680.25
n÷5	4281344.2

Exponentiation

n^y

n²	458247703971841
n³	9.8095807478158E+21
n⁴	2.0999095819546E+29
n⁵	4.495217854613E+36

Nth Root

^y√n

²√n	4626.7397808824
³√n	277.66217179879
⁴√n	68.020142464438
⁵√n	29.24893314159

Divisors of 21406721

1, 7, 23, 161, 132961, 930727, 3058103, 21406721

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	-21406720	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 21406721 can be divided by 8 positive divisors. The sum of these divisors (counting 21406721) is 1, the average is 0.125.

Base conversion 21406721

Base	System	Value
2	Binary	1010001101010010000000001
3	Ternary	1111021120111112
4	Quaternary	1101222100001
5	Quinary	20440003341
6	Senary	2042453105
8	Octal	121522001
10	Decimal	21406721
12	Duodecimal	7204195
16	Hexadecimal	146a401
20	Vigesimal	6dfgg1
36	Base36	cqtj5

Cryptographic Hash Functions

md5	73ec5ae27e0d0b1dc25e599ff56f7ad0
sha1	f71c9f914525bef645b31c159d815d0a28662177
sha256	3f762e148e58fa532a1ef6ca8b9bac0cf777f3cfa839a88dd60b9f0905d249dd
sha512	5df0add08218bfe11d752490a68dc4085b6594dfeaa20d679e1b7f25c71bcc5011deffdaf55ed82ca3e9865a4f902769952294a04f78c2ec6152c83f8e8b2c04
ripemd-160	8ed37d96211bb9aa9c90f332ae6cb9fef0d99c69

21406721 as geometric shapes

Circle

Radius = n

Diameter	42813442
Circumference	134502394.86209
Area	1.4396276203223E+15

Sphere

Radius = n

Volume	4.1090275749512E+22
Surface area	5.7585104812893E+15
Circumference	134502394.86209

Square

Length = n

Perimeter	85626884
Area	458247703971841
Diagonal	30273675.164137

Cube

Length = n

Surface area	2749486223831046
Volume	9.8095807478158E+21
Space diagonal	37077528.395452

Equilateral Triangle

Length = n

Perimeter	64220163
Area	1.9842707643275E+14
Altitude	18538764.197726

Triangular Pyramid

Length = n

Surface area	1.9842707643275E+14
Volume	1.1560701778963E+21
Height	10091225.054712