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

21291290 (number)

21291290 is an even 8-digits composite number following 21291289 and preceding 21291291. In scientific notation, it is written as 2.1291290 × 10^7. The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors. There are 8408400 positive integers (up to 21291290) that are relatively prime to 21291290.

Interesting facts

21291290 has 8 divisors, whose sum is 32018976
The reverse of 21291290 is 09219212
Previous prime number is 395

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8

Name

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

Notation

Scientific notation	2.1291290 × 10^7
Engineering notation	2.1291290 × 10^6

Prime Factorization of 21291290

Prime Factorization 2 × 395 × 26951

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21291290	Product of the distinct prime numbers

The prime factorization of 21291290 is 2 × 395 × 26951. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 5, 34, 54, 257, 592, 7836, 675, 44504, 12335, 382955, 793635, 6816241, 7303457, 58908564, 27591188, 143069622, 550361507, 8480244049, 343867817

Basic calculations (n = 21291290)

Multiplication

n×y

n×2	42582580
n×3	63873870
n×4	85165160
n×5	106456450

Division

n÷y

n÷2	10645645
n÷3	7097096.6666667
n÷3	5322822.5
n÷5	4258258

Exponentiation

n^y

n²	453319029864100
n³	9.6517469273552E+21
n⁴	2.0549814283693E+29
n⁵	4.3753205536025E+36

Nth Root

^y√n

²√n	4614.2485845477
³√n	277.16219480027
⁴√n	67.928260573547
⁵√n	29.217321205431

Divisors of 21291290

1, 2, 395, 790, 26951, 53902, 10645645, 21291290

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	-21291289	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 21291290 can be divided by 8 positive divisors. The sum of these divisors (counting 21291290) is 1, the average is 0.125.

Base conversion 21291290

Base	System	Value
2	Binary	1010001001110000100011010
3	Ternary	1111001201011022
4	Quaternary	1101032010122
5	Quinary	20422310130
6	Senary	2040202442
8	Octal	121160432
10	Decimal	21291290
12	Duodecimal	7169422
16	Hexadecimal	144e11a
20	Vigesimal	6d184a
36	Base36	cocgq

Cryptographic Hash Functions

md5	1f3c84e45aa11e5e7ab3ce2b9ff8b918
sha1	106467d4fb94883a939fc7e7ffad01cba5cf4441
sha256	381b5b9bfbb3c18db64fd25bf44df01e386a3dd8561446d9ffe05a19489cce4e
sha512	1f5618a718497a4ce0dc2016adc8f13297cc375006dc0ea6374e41bae69c3123901533dd3ed2085f558b3f77e2bde51285d30432a5186daeae855ab5c995fa1f
ripemd-160	6efec3c2fd01dfcc7bceb1c26fa7b45f4ca66f5a

21291290 as geometric shapes

Circle

Radius = n

Diameter	42582580
Circumference	133777120.4989
Area	1.4241437339535E+15

Sphere

Radius = n

Volume	4.0429142988383E+22
Surface area	5.696574935814E+15
Circumference	133777120.4989

Square

Length = n

Perimeter	85165160
Area	453319029864100
Diagonal	30110431.078419

Cube

Length = n

Surface area	2719914179184600
Volume	9.6517469273552E+21
Space diagonal	36877596.038683

Equilateral Triangle

Length = n

Perimeter	63873870
Area	1.9629289794061E+14
Altitude	18438798.019342

Triangular Pyramid

Length = n

Surface area	1.9629289794061E+14
Volume	1.1374692837715E+21
Height	10036810.359473