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

21491345 (number)

21491345 is an odd 8-digits composite number following 21491344 and preceding 21491346. In scientific notation, it is written as 2.1491345 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 16950640 positive integers (up to 21491345) that are relatively prime to 21491345.

Interesting facts

21491345 has 8 divisors, whose sum is 26153280
The reverse of 21491345 is 54319412
Previous prime number is 71

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2

Name

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

Notation

Scientific notation	2.1491345 × 10^7
Engineering notation	2.1491345 × 10^6

Prime Factorization of 21491345

Prime Factorization 5 × 71 × 60539

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21491345	Product of the distinct prime numbers

The prime factorization of 21491345 is 5 × 71 × 60539. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 4, 49, 64, 514, 410, 5790, 5245, 43202, 13517, 120946, 741617, 570547, 7607177, 48321836, 38362613, 121785511, 699591158, 1108789884, 1644151292

Basic calculations (n = 21491345)

Multiplication

n×y

n×2	42982690
n×3	64474035
n×4	85965380
n×5	107456725

Division

n÷y

n÷2	10745672.5
n÷3	7163781.6666667
n÷3	5372836.25
n÷5	4298269

Exponentiation

n^y

n²	461877909909025
n³	9.9263775097338E+21
n⁴	2.1333120366193E+29
n⁵	4.5847744971638E+36

Nth Root

^y√n

²√n	4635.8758611507
³√n	278.0275708901
⁴√n	68.087266512548
⁵√n	29.27202175101

Divisors of 21491345

1, 5, 71, 355, 60539, 302695, 4298269, 21491345

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	-21491344	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 21491345 can be divided by 8 positive divisors. The sum of these divisors (counting 21491345) is 1, the average is 0.125.

Base conversion 21491345

Base	System	Value
2	Binary	1010001111110111010010001
3	Ternary	1111102212120202
4	Quaternary	1101332322101
5	Quinary	21000210340
6	Senary	2044344545
8	Octal	121767221
10	Decimal	21491345
12	Duodecimal	7245155
16	Hexadecimal	147ee91
20	Vigesimal	6e6875
36	Base36	csmtt

Cryptographic Hash Functions

md5	d9922caec6aee4e2f509335ecad3dbe8
sha1	9e11dd21c3e27c4862ae1f87d69d3a9584789410
sha256	6186567f2a56d55d97033f79d2822d7719538e123303b02de55d5fb7af8a5f4e
sha512	c1a8d54bfed047ed68bac28687a3ed311d69df106d5bb8790fea0d1ba7d20d0e264365f1a2b63ed6a6125b02a4c3c86f33bfee0b456b8a6802e150e02e43878b
ripemd-160	a0ff79a4446e6137fef59a90dcda4f9f87c4fe68

21491345 as geometric shapes

Circle

Radius = n

Diameter	42982690
Circumference	135034103.13553
Area	1.4510322486256E+15

Sphere

Radius = n

Volume	4.1579512881785E+22
Surface area	5.8041289945024E+15
Circumference	135034103.13553

Square

Length = n

Perimeter	85965380
Area	461877909909025
Diagonal	30393351.572639

Cube

Length = n

Surface area	2771267459454150
Volume	9.9263775097338E+21
Space diagonal	37224101.462991

Equilateral Triangle

Length = n

Perimeter	64474035
Area	1.9999900171404E+14
Altitude	18612050.731496

Triangular Pyramid

Length = n

Surface area	1.9999900171404E+14
Volume	1.1698348082917E+21
Height	10131117.19088