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

21388911 (number)

21388911 is an odd 8-digits composite number following 21388910 and preceding 21388912. In scientific notation, it is written as 2.1388911 × 10^7. The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors. There are 14259272 positive integers (up to 21388911) that are relatively prime to 21388911.

Interesting facts

21388911 has 4 divisors, whose sum is 28518552
The reverse of 21388911 is 11988312
Previous prime number is 3

Basic properties

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

Name

Name	twenty-one million three hundred eighty-eight thousand nine hundred eleven

Notation

Scientific notation	2.1388911 × 10^7
Engineering notation	2.1388911 × 10^6

Prime Factorization of 21388911

Prime Factorization 3 × 7129637

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21388911	Product of the distinct prime numbers

The prime factorization of 21388911 is 3 × 7129637. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 2, 31, 52, 649, 758, 7268, 9633, 45295, 57680, 489037, 768189, 7018788, 4501240, 35713731, 71524523, 440086913, 807634080, 7009539890, 4078459074

Basic calculations (n = 21388911)

Multiplication

n×y

n×2	42777822
n×3	64166733
n×4	85555644
n×5	106944555

Division

n÷y

n÷2	10694455.5
n÷3	7129637
n÷3	5347227.75
n÷5	4277782.2

Exponentiation

n^y

n²	457485513765921
n³	9.7851169377286E+21
n⁴	2.0929299530567E+29
n⁵	4.4765492495164E+36

Nth Root

^y√n

²√n	4624.8146989907
³√n	277.58514715246
⁴√n	68.005990169916
⁵√n	29.244064605719

Divisors of 21388911

1, 3, 7129637, 21388911

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-21388910	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21388911 can be divided by 4 positive divisors. The sum of these divisors (counting 21388911) is 1, the average is 0.25.

Base conversion 21388911

Base	System	Value
2	Binary	1010001100101111001101111
3	Ternary	1111020200001220
4	Quaternary	1101211321233
5	Quinary	20433421121
6	Senary	2042234423
8	Octal	121457157
10	Decimal	21388911
12	Duodecimal	71b5a13
16	Hexadecimal	1465e6f
20	Vigesimal	6ddc5b
36	Base36	cqfsf

Cryptographic Hash Functions

md5	1b2bbadbe3e7c06c8f98b5ea5a8dbb3e
sha1	34c98e54b75373167ad0ebc5be4e8d02be01ebd9
sha256	61af08b01eb8c183b93d57b53ba289107ef0ccb6b938ff8a85b35176da82a6f7
sha512	8fa857c8b472a95d70c796e94c3a1d95500e089d7216b86cb200a6ee20f68640f1a7a56e1a5b5e782a11d28c0ae962f9925c6666c59339f2171d093df00d85b7
ripemd-160	594d4cf1a74ad4a414f34a6d98ea61cf79cfe831

21388911 as geometric shapes

Circle

Radius = n

Diameter	42777822
Circumference	134390491.33177
Area	1.4372331291708E+15

Sphere

Radius = n

Volume	4.0987801981447E+22
Surface area	5.7489325166831E+15
Circumference	134390491.33177

Square

Length = n

Perimeter	85555644
Area	457485513765921
Diagonal	30248488.020591

Cube

Length = n

Surface area	2744913082595526
Volume	9.7851169377286E+21
Space diagonal	37046680.570569

Equilateral Triangle

Length = n

Perimeter	64166733
Area	1.9809703839233E+14
Altitude	18523340.285284

Triangular Pyramid

Length = n

Surface area	1.9809703839233E+14
Volume	1.1531870902285E+21
Height	10082829.340197