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

21409945 (number)

21409945 is an odd 8-digits composite number following 21409944 and preceding 21409946. In scientific notation, it is written as 2.1409945 × 10^7. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 17127952 positive integers (up to 21409945) that are relatively prime to 21409945.

Interesting facts

21409945 has 4 divisors, whose sum is 25691940
The reverse of 21409945 is 54990412
Previous prime number is 5

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 nine thousand nine hundred forty-five

Notation

Scientific notation	2.1409945 × 10^7
Engineering notation	2.1409945 × 10^6

Prime Factorization of 21409945

Prime Factorization 5 × 4281989

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	21409945	Product of the distinct prime numbers

The prime factorization of 21409945 is 5 × 4281989. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 8, 94, 67, 716, 358, 8010, 7820, 20954, 41651, 563555, 229234, 967032, 7223102, 49379107, 13368834, 389081424, 119327040, 7883554079, 2253318507

Basic calculations (n = 21409945)

Multiplication

n×y

n×2	42819890
n×3	64229835
n×4	85639780
n×5	107049725

Division

n÷y

n÷2	10704972.5
n÷3	7136648.3333333
n÷3	5352486.25
n÷5	4281989

Exponentiation

n^y

n²	458385744903025
n³	9.8140135871578E+21
n⁴	2.101174911303E+29
n⁵	4.4986039286377E+36

Nth Root

^y√n

²√n	4627.088177245
³√n	277.67611037919
⁴√n	68.022703395594
⁵√n	29.24981410678

Divisors of 21409945

1, 5, 4281989, 21409945

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	-21409944	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 21409945 can be divided by 4 positive divisors. The sum of these divisors (counting 21409945) is 1, the average is 0.25.

Base conversion 21409945

Base	System	Value
2	Binary	1010001101011000010011001
3	Ternary	1111021201220221
4	Quaternary	1101223002121
5	Quinary	20440104240
6	Senary	2042520041
8	Octal	121530231
10	Decimal	21409945
12	Duodecimal	7206021
16	Hexadecimal	146b099
20	Vigesimal	6dg4h5
36	Base36	cqw0p

Cryptographic Hash Functions

md5	4556b9d930c0a0f9ab486137c0d7527e
sha1	6ce1dea1a4d5ff01c50a4081cfb525d6f54cc4a7
sha256	9a24c9e2ccf6d9219254ccdd75b758710ca793247519b66398d9f7d1a52238ac
sha512	83e065ba2eab94026c2629a5f6387f38d3b7041829f00b64bed09f36adc4f0d449cd463422acfc906081f888e335c9638b0b32917e51dcb409cffe4eb2584f6f
ripemd-160	af2755d8a2390c0265f33a84f392370efaf90e00

21409945 as geometric shapes

Circle

Radius = n

Diameter	42819890
Circumference	134522651.85152
Area	1.4400612886976E+15

Sphere

Radius = n

Volume	4.1108843983527E+22
Surface area	5.7602451547905E+15
Circumference	134522651.85152

Square

Length = n

Perimeter	85639780
Area	458385744903025
Diagonal	30278234.588662

Cube

Length = n

Surface area	2750314469418150
Volume	9.8140135871578E+21
Space diagonal	37083112.527255

Equilateral Triangle

Length = n

Perimeter	64229835
Area	1.9848684990934E+14
Altitude	18541556.263628

Triangular Pyramid

Length = n

Surface area	1.9848684990934E+14
Volume	1.1565925930227E+21
Height	10092744.862887