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

21409905 (number)

21409905 is an odd 8-digits composite number following 21409904 and preceding 21409906. In scientific notation, it is written as 2.1409905 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 10380480 positive integers (up to 21409905) that are relatively prime to 21409905.

Interesting facts

21409905 has 8 divisors, whose sum is 24913536
The reverse of 21409905 is 50990412
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

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

Notation

Scientific notation	2.1409905 × 10^7
Engineering notation	2.1409905 × 10^6

Prime Factorization of 21409905

Prime Factorization 15 × 11 × 129757

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	21409905	Product of the distinct prime numbers

The prime factorization of 21409905 is 15 × 11 × 129757. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 1, 86, 87, 20, 961, 8086, 619, 18412, 11454, 377696, 847021, 1523615, 535654, 68585842, 85293481, 5209308, 574255464, 3705606611, 4225701118

Basic calculations (n = 21409905)

Multiplication

n×y

n×2	42819810
n×3	64229715
n×4	85639620
n×5	107049525

Division

n÷y

n÷2	10704952.5
n÷3	7136635
n÷3	5352476.25
n÷5	4281981

Exponentiation

n^y

n²	458384032109025
n³	9.8139585809712E+21
n⁴	2.1011592089253E+29
n⁵	4.4985619052965E+36

Nth Root

^y√n

²√n	4627.0838548701
³√n	277.67593745252
⁴√n	68.022671624027
⁵√n	29.249803177341

Divisors of 21409905

1, 11, 15, 165, 129757, 1427327, 1946355, 21409905

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	-21409904	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 21409905 can be divided by 8 positive divisors. The sum of these divisors (counting 21409905) is 1, the average is 0.125.

Base conversion 21409905

Base	System	Value
2	Binary	1010001101011000001110001
3	Ternary	1111021201212110
4	Quaternary	1101223001301
5	Quinary	20440104110
6	Senary	2042515533
8	Octal	121530161
10	Decimal	21409905
12	Duodecimal	7205ba9
16	Hexadecimal	146b071
20	Vigesimal	6dg4f5
36	Base36	cqvzl

Cryptographic Hash Functions

md5	299fa4eb1d4783c565e46cfb3b20538f
sha1	c68204808eea663ba57f868e5ec749dd25f862f6
sha256	d8e10a0b2ced068845eb783488a9bcdfe976da7c748bc09d1bf6da60ac48cd1a
sha512	33d574ad21e8c1824d626edb7cc84c4cd9353620e34a1aadb56aeb5a7a9679e6211566ff913a93319df313eebcb5a6ea62af15140caac67fc565ed884eff529d
ripemd-160	5f26396608e6cac79c7fea2dfac927181ee7dc54

21409905 as geometric shapes

Circle

Radius = n

Diameter	42819810
Circumference	134522400.52411
Area	1.4400559077966E+15

Sphere

Radius = n

Volume	4.1108613574151E+22
Surface area	5.7602236311863E+15
Circumference	134522400.52411

Square

Length = n

Perimeter	85639620
Area	458384032109025
Diagonal	30278178.02012

Cube

Length = n

Surface area	2750304192654150
Volume	9.8139585809712E+21
Space diagonal	37083043.245223

Equilateral Triangle

Length = n

Perimeter	64229715
Area	1.9848610824778E+14
Altitude	18541521.622611

Triangular Pyramid

Length = n

Surface area	1.9848610824778E+14
Volume	1.1565861104814E+21
Height	10092726.006707