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

21551381 (number)

21551381 is an odd 8-digits composite number following 21551380 and preceding 21551382. In scientific notation, it is written as 2.1551381 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 21526092 positive integers (up to 21551381) that are relatively prime to 21551381.

Interesting facts

21551381 has 4 divisors, whose sum is 21576672
The reverse of 21551381 is 18315512
Previous prime number is 883

Basic properties

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

Name

Name	twenty-one million five hundred fifty-one thousand three hundred eighty-one

Notation

Scientific notation	2.1551381 × 10^7
Engineering notation	2.1551381 × 10^6

Prime Factorization of 21551381

Prime Factorization 883 × 24407

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21551381	Product of the distinct prime numbers

The prime factorization of 21551381 is 883 × 24407. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 6, 21, 13, 744, 224, 2837, 4925, 4230, 24755, 375220, 410656, 7270095, 8868552, 76827208, 57763778, 31105191, 629143516, 2734651633, 9615186873

Basic calculations (n = 21551381)

Multiplication

n×y

n×2	43102762
n×3	64654143
n×4	86205524
n×5	107756905

Division

n÷y

n÷2	10775690.5
n÷3	7183793.6666667
n÷3	5387845.25
n÷5	4310276.2

Exponentiation

n^y

n²	464462023007161
n³	1.0009798017858E+22
n⁴	2.157249708159E+29
n⁵	4.6491710372674E+36

Nth Root

^y√n

²√n	4642.346497193
³√n	278.2862198892
⁴√n	68.134767169141
⁵√n	29.288357766222

Divisors of 21551381

1, 883, 24407, 21551381

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	-21551380	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 21551381 can be divided by 4 positive divisors. The sum of these divisors (counting 21551381) is 1, the average is 0.25.

Base conversion 21551381

Base	System	Value
2	Binary	1010010001101100100010101
3	Ternary	1111112220221022
4	Quaternary	1102031210111
5	Quinary	21004121011
6	Senary	2045530525
8	Octal	122154425
10	Decimal	21551381
12	Duodecimal	7273a45
16	Hexadecimal	148d915
20	Vigesimal	6edi91
36	Base36	ctx5h

Cryptographic Hash Functions

md5	c640a9f55964d26f07534a9bfd36f68b
sha1	7c9e7d27f444cc2becffa45c6eaf32a7a15cb61d
sha256	b83ac681bfebaeb8998988cf8d25941756034b6448534135a433ff4fb685c999
sha512	8ac6b2abf3f528ab743b5361e3855d3612996f581b58c5f4377f69adb5ea79790e71d92ca6d3237490df77a09e168e7c0e5a7a01406de4f3d9170e6eb524aded
ripemd-160	d5497edd72afa67b54959dddd5e2ddba4013e1df

21551381 as geometric shapes

Circle

Radius = n

Diameter	43102762
Circumference	135411320.44863
Area	1.4591504793508E+15

Sphere

Radius = n

Volume	4.1928943889094E+22
Surface area	5.836601917403E+15
Circumference	135411320.44863

Square

Length = n

Perimeter	86205524
Area	464462023007161
Diagonal	30478255.29807

Cube

Length = n

Surface area	2786772138042966
Volume	1.0009798017858E+22
Space diagonal	37328086.865275

Equilateral Triangle

Length = n

Perimeter	64654143
Area	2.0111795550866E+14
Altitude	18664043.432637

Triangular Pyramid

Length = n

Surface area	2.0111795550866E+14
Volume	1.1796660094559E+21
Height	10159418.43269