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

21490945 (number)

21490945 is an odd 8-digits composite number following 21490944 and preceding 21490946. In scientific notation, it is written as 2.1490945 × 10^7. The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors. There are 14639040 positive integers (up to 21490945) that are relatively prime to 21490945.

Interesting facts

21490945 has 8 divisors, whose sum is 22251456
The reverse of 21490945 is 54909412
Previous prime number is 157

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7

Name

Name	twenty-one million four hundred ninety thousand nine hundred forty-five

Notation

Scientific notation	2.1490945 × 10^7
Engineering notation	2.1490945 × 10^6

Prime Factorization of 21490945

Prime Factorization 35 × 157 × 3911

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21490945	Product of the distinct prime numbers

The prime factorization of 21490945 is 35 × 157 × 3911. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 7, 66, 49, 846, 364, 3253, 8066, 6530, 53294, 333719, 233409, 2680205, 8808047, 88859497, 16895633, 285018823, 634796925, 8168394042, 4369248863

Basic calculations (n = 21490945)

Multiplication

n×y

n×2	42981890
n×3	64472835
n×4	85963780
n×5	107454725

Division

n÷y

n÷2	10745472.5
n÷3	7163648.3333333
n÷3	5372736.25
n÷5	4298189

Exponentiation

n^y

n²	461860716993025
n³	9.9258232665577E+21
n⁴	2.1331532190131E+29
n⁵	4.5843478506384E+36

Nth Root

^y√n

²√n	4635.8327191563
³√n	278.02584598303
⁴√n	68.086949697841
⁵√n	29.271912787184

Divisors of 21490945

1, 35, 157, 3911, 5495, 136885, 614027, 21490945

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	-21490944	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 21490945 can be divided by 8 positive divisors. The sum of these divisors (counting 21490945) is 1, the average is 0.125.

Base conversion 21490945

Base	System	Value
2	Binary	1010001111110110100000001
3	Ternary	1111102212000221
4	Quaternary	1101332310001
5	Quinary	21000202240
6	Senary	2044343041
8	Octal	121766401
10	Decimal	21490945
12	Duodecimal	7244a81
16	Hexadecimal	147ed01
20	Vigesimal	6e6775
36	Base36	csmip

Cryptographic Hash Functions

md5	2362ed60b058e9a629d280d1bcc9451c
sha1	355e211114a6aaa0e7c8077c8b05fdd92231235c
sha256	b544a03a8cb1d2d3a97e41bf39a5396297fba633a66fef33ac1afb101a2055a2
sha512	d953f4a30ee6bd7261f4704d9c6c2dad64b8e2ab73c6c6885a9aff47318913e607e8bc28e998086e695f8e8921425f52f1a97fb6ad8e455bcbd6f1f6ed303286
ripemd-160	2826a7fe302b5c640896b96e2b523f95fc00038f

21490945 as geometric shapes

Circle

Radius = n

Diameter	42981890
Circumference	135031589.8614
Area	1.450978235487E+15

Sphere

Radius = n

Volume	4.1577191273398E+22
Surface area	5.803912941948E+15
Circumference	135031589.8614

Square

Length = n

Perimeter	85963780
Area	461860716993025
Diagonal	30392785.887214

Cube

Length = n

Surface area	2771164301958150
Volume	9.9258232665577E+21
Space diagonal	37223408.642668

Equilateral Triangle

Length = n

Perimeter	64472835
Area	1.9999155696303E+14
Altitude	18611704.321334

Triangular Pyramid

Length = n

Surface area	1.9999155696303E+14
Volume	1.169769490107E+21
Height	10130928.629071