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

21051561 (number)

21051561 is an odd 8-digits composite number following 21051560 and preceding 21051562. In scientific notation, it is written as 2.1051561 × 10^7. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 13909952 positive integers (up to 21051561) that are relatively prime to 21051561.

Interesting facts

21051561 has 8 divisors, whose sum is 28317600
The reverse of 21051561 is 16515012
Previous prime number is 113

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3

Name

Name	twenty-one million fifty-one thousand five hundred sixty-one

Notation

Scientific notation	2.1051561 × 10^7
Engineering notation	2.1051561 × 10^6

Prime Factorization of 21051561

Prime Factorization 3 × 113 × 62099

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21051561	Product of the distinct prime numbers

The prime factorization of 21051561 is 3 × 113 × 62099. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 2, 72, 100, 23, 100, 2713, 1223, 96056, 85585, 142805, 238410, 7229894, 2978871, 5429316, 43196841, 137049246, 952654346, 1211883612, 7242188094

Basic calculations (n = 21051561)

Multiplication

n×y

n×2	42103122
n×3	63154683
n×4	84206244
n×5	105257805

Division

n÷y

n÷2	10525780.5
n÷3	7017187
n÷3	5262890.25
n÷5	4210312.2

Exponentiation

n^y

n²	443168220536721
n³	9.3293828278902E+21
n⁴	1.9639807169368E+29
n⁵	4.134485986542E+36

Nth Root

^y√n

²√n	4588.198012292
³√n	276.11803132728
⁴√n	67.736238545493
⁵√n	29.151228454284

Divisors of 21051561

1, 3, 113, 339, 62099, 186297, 7017187, 21051561

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	-21051560	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 21051561 can be divided by 8 positive divisors. The sum of these divisors (counting 21051561) is 1, the average is 0.125.

Base conversion 21051561

Base	System	Value
2	Binary	1010000010011100010101001
3	Ternary	1110121112022110
4	Quaternary	1100103202221
5	Quinary	20342122221
6	Senary	2031112533
8	Octal	120234251
10	Decimal	21051561
12	Duodecimal	7072749
16	Hexadecimal	14138a9
20	Vigesimal	6bb8i1
36	Base36	cj7hl

Cryptographic Hash Functions

md5	084c5c05b4b7ff248eb4bc543cd5cc0d
sha1	b0575fd2b30a12be1cf35ab6d57870f39b9d0699
sha256	739e8c745641ffc5ced4d7194eecaef9df38f25a26c6173c234068864d25d845
sha512	9d7c1ff639512a9bc63bcd83156b3beef015f2923c2dbbdb9909b02ab035d7fe32231766c48543b6e491e1e9782d0905331ff50ab372c643d9cc7647bb882047
ripemd-160	0bff8f2c35e4f3b6736b54767c685210a1a623ae

21051561 as geometric shapes

Circle

Radius = n

Diameter	42103122
Circumference	132270858.76839
Area	1.3922540259426E+15

Sphere

Radius = n

Volume	3.9078827406169E+22
Surface area	5.5690161037705E+15
Circumference	132270858.76839

Square

Length = n

Perimeter	84206244
Area	443168220536721
Diagonal	29771403.075325

Cube

Length = n

Surface area	2659009323220326
Volume	9.3293828278902E+21
Space diagonal	36462373.230635

Equilateral Triangle

Length = n

Perimeter	63154683
Area	1.9189746856737E+14
Altitude	18231186.615318

Triangular Pyramid

Length = n

Surface area	1.9189746856737E+14
Volume	1.0994783103144E+21
Height	9923801.0251082