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

21291287 (number)

21291287 is an odd 8-digits prime number following 21291286 and preceding 21291288. In scientific notation, it is written as 2.1291287 × 10^7. The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors. There are 21291286 positive integers (up to 21291287) that are relatively prime to 21291287.

Interesting facts

21291287 has 2 divisors, whose sum is 21291288
The reverse of 21291287 is 78219212
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

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

Notation

Scientific notation	2.1291287 × 10^7
Engineering notation	2.1291287 × 10^6

Prime Factorization of 21291287

Prime Factorization 21291287

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	21291287	Product of the distinct prime numbers

The prime factorization of 21291287 is 21291287. Since it has a total of 1 prime factors.

Most popular turbo-numbers

1, 5, 67, 30, 504, 861, 6612, 129, 56466, 23237, 38963, 484833, 8948404, 1058006, 68432119, 50604477, 617067738, 826378508, 3727280793, 3395819596

Basic calculations (n = 21291287)

Multiplication

n×y

n×2	42582574
n×3	63873861
n×4	85165148
n×5	106456435

Division

n÷y

n÷2	10645643.5
n÷3	7097095.6666667
n÷3	5322821.75
n÷5	4258257.4

Exponentiation

n^y

n²	453318902116369
n³	9.6517428474845E+21
n⁴	2.0549802701599E+29
n⁵	4.3753174711312E+36

Nth Root

^y√n

²√n	4614.2482594676
³√n	277.16218178263
⁴√n	67.928258180728
⁵√n	29.217320382071

Divisors of 21291287

1, 21291287

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	21291288	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	10645644	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	4614.2483678276	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999060649	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21291287 can be divided by 2 positive divisors. The sum of these divisors (counting 21291287) is 21291288, the average is 10645644.

Base conversion 21291287

Base	System	Value
2	Binary	1010001001110000100010111
3	Ternary	1111001201011012
4	Quaternary	1101032010113
5	Quinary	20422310122
6	Senary	2040202435
8	Octal	121160427
10	Decimal	21291287
12	Duodecimal	716941b
16	Hexadecimal	144e117
20	Vigesimal	6d1847
36	Base36	cocgn

Cryptographic Hash Functions

md5	f525dc00b3cc34fb7704b52bbc00d6a6
sha1	87aed0a4c4395ba3953a63941289a0a95ce1f21d
sha256	63e035291989fb25b27e526cf7afdb3edb33c2f9826730a22d0cf916dc75209f
sha512	e5f51c81f832f6e1dc8bde576da75f8b142f9b980f48c9620130f85758834dd0b95e4a03b62f34db73d471621b57de7507b68ef92c245243bc3e51d202488ea5
ripemd-160	9c973bd3d475a691b7234c60dd01c0fd76de4f49

21291287 as geometric shapes

Circle

Radius = n

Diameter	42582574
Circumference	133777101.64934
Area	1.4241433326222E+15

Sphere

Radius = n

Volume	4.042912589866E+22
Surface area	5.6965733304887E+15
Circumference	133777101.64934

Square

Length = n

Perimeter	85165148
Area	453318902116369
Diagonal	30110426.835778

Cube

Length = n

Surface area	2719913412698214
Volume	9.6517428474845E+21
Space diagonal	36877590.842531

Equilateral Triangle

Length = n

Perimeter	63873861
Area	1.9629284262422E+14
Altitude	18438795.421265

Triangular Pyramid

Length = n

Surface area	1.9629284262422E+14
Volume	1.1374688029542E+21
Height	10036808.945259