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

21481921 (number)

21481921 is an odd 8-digits prime number following 21481920 and preceding 21481922. In scientific notation, it is written as 2.1481921 × 10^7. The sum of its digits is 28. It has a total of 1 prime factors and 2 positive divisors. There are 21481920 positive integers (up to 21481921) that are relatively prime to 21481921.

Interesting facts

21481921 has 2 divisors, whose sum is 21481922
The reverse of 21481921 is 12918412
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	twenty-one million four hundred eighty-one thousand nine hundred twenty-one

Notation

Scientific notation	2.1481921 × 10^7
Engineering notation	2.1481921 × 10^6

Prime Factorization of 21481921

Prime Factorization 21481921

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21481921	Product of the distinct prime numbers

The prime factorization of 21481921 is 21481921. Since it has a total of 1 prime factors.

Most popular turbo-numbers

3, 4, 57, 33, 447, 603, 1793, 5652, 71368, 48407, 398798, 789234, 9407208, 8197032, 92234834, 60301873, 668287175, 243831177, 5271561407, 2628055848

Basic calculations (n = 21481921)

Multiplication

n×y

n×2	42963842
n×3	64445763
n×4	85927684
n×5	107409605

Division

n÷y

n÷2	10740960.5
n÷3	7160640.3333333
n÷3	5370480.25
n÷5	4296384.2

Exponentiation

n^y

n²	461472929850241
n³	9.9133250226814E+21
n⁴	2.1295726498457E+29
n⁵	4.5747311427745E+36

Nth Root

^y√n

²√n	4634.8593290412
³√n	277.98692639035
⁴√n	68.079801182445
⁵√n	29.269454131983

Divisors of 21481921

1, 21481921

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21481922	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10740961	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4634.8594369193	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999068985	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21481921 can be divided by 2 positive divisors. The sum of these divisors (counting 21481921) is 21481922, the average is 10740961.

Base conversion 21481921

Base	System	Value
2	Binary	1010001111100100111000001
3	Ternary	1111102101122201
4	Quaternary	1101330213001
5	Quinary	20444410141
6	Senary	2044233201
8	Octal	121744701
10	Decimal	21481921
12	Duodecimal	723b801
16	Hexadecimal	147c9c1
20	Vigesimal	6e54g1
36	Base36	csfk1

Cryptographic Hash Functions

md5	76b0b66052a329d12989b3c98f1622fd
sha1	00f267347319460713139358ef46b03b397093fa
sha256	e2547025d9cda4fda84eefa687575b1b92ad9fcaf1fd4ff927920a0168c37a53
sha512	5b6be7ef59e7605fd720962fed6590d01d8d88f7b8adf784542cebeddb9742d28af87836bf7aa87d24fa28aba91f1c43e365cf4537c8c4f834128e6f5f7039e3
ripemd-160	98cdcc43666e86531d165cf3bb55640c3542c910

21481921 as geometric shapes

Circle

Radius = n

Diameter	42963842
Circumference	134974890.39719
Area	1.4497599662481E+15

Sphere

Radius = n

Volume	4.1524838751872E+22
Surface area	5.7990398649923E+15
Circumference	134974890.39719

Square

Length = n

Perimeter	85927684
Area	461472929850241
Diagonal	30380024.024027

Cube

Length = n

Surface area	2768837579101446
Volume	9.9133250226814E+21
Space diagonal	37207778.616181

Equilateral Triangle

Length = n

Perimeter	64445763
Area	1.9982364020457E+14
Altitude	18603889.30809

Triangular Pyramid

Length = n

Surface area	1.9982364020457E+14
Volume	1.1682965579407E+21
Height	10126674.674676