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

20451209 (number)

20451209 is an odd 8-digits composite number following 20451208 and preceding 20451210. In scientific notation, it is written as 2.0451209 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 19418256 positive integers (up to 20451209) that are relatively prime to 20451209.

Interesting facts

20451209 has 8 divisors, whose sum is 21497280
The reverse of 20451209 is 90215402
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5

Name

Name	twenty million four hundred fifty-one thousand two hundred nine

Notation

Scientific notation	2.0451209 × 10^7
Engineering notation	2.0451209 × 10^6

Prime Factorization of 20451209

Prime Factorization 139 × 23 × 6397

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	20451209	Product of the distinct prime numbers

The prime factorization of 20451209 is 139 × 23 × 6397. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 8, 30, 63, 536, 259, 1058, 2274, 73068, 84706, 268491, 429595, 5917950, 7023869, 62953168, 79411851, 952872868, 816832282, 7950809418, 8457945521

Basic calculations (n = 20451209)

Multiplication

n×y

n×2	40902418
n×3	61353627
n×4	81804836
n×5	102256045

Division

n÷y

n÷2	10225604.5
n÷3	6817069.6666667
n÷3	5112802.25
n÷5	4090241.8

Exponentiation

n^y

n²	418251949561681
n³	8.5537580351434E+21
n⁴	1.7493469331215E+29
n⁵	3.5776259742776E+36

Nth Root

^y√n

²√n	4522.301294695
³√n	273.46788322409
⁴√n	67.248057925081
⁵√n	28.983030736445

Divisors of 20451209

1, 23, 139, 3197, 6397, 147131, 889183, 20451209

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	-20451208	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 20451209 can be divided by 8 positive divisors. The sum of these divisors (counting 20451209) is 1, the average is 0.125.

Base conversion 20451209

Base	System	Value
2	Binary	1001110000000111110001001
3	Ternary	1102111000210012
4	Quaternary	1032000332021
5	Quinary	20213414314
6	Senary	2010201305
8	Octal	116007611
10	Decimal	20451209
12	Duodecimal	6a23235
16	Hexadecimal	1380f89
20	Vigesimal	67g809
36	Base36	c6c95

Cryptographic Hash Functions

md5	fc6c65d615d5ac90bdf4b9dfdf14016d
sha1	ed8bad3129a877dcf3ef2c92bf7ffa6badc1ca74
sha256	3d16303d2cea156d0d2b873cda3e85aadb3f762c742f9ae47776199bd65a0295
sha512	1305affa5550f277f8b0a4993ca46c5c05e167b8ee295edc7f463e843de883c916fbd8968103e66699976cbf5bf45b4159d2072ea87b4bb181727b4517d7e04e
ripemd-160	272432bd45f53a6afab191319879694577075540

20451209 as geometric shapes

Circle

Radius = n

Diameter	40902418
Circumference	128498735.90286
Area	1.3139772520926E+15

Sphere

Radius = n

Volume	3.5829897871722E+22
Surface area	5.2559090083703E+15
Circumference	128498735.90286

Square

Length = n

Perimeter	81804836
Area	418251949561681
Diagonal	28922377.134727

Cube

Length = n

Surface area	2509511697370086
Volume	8.5537580351434E+21
Space diagonal	35422533.06421

Equilateral Triangle

Length = n

Perimeter	61353627
Area	1.8110840675139E+14
Altitude	17711266.532105

Triangular Pyramid

Length = n

Surface area	1.8110840675139E+14
Volume	1.0080700518798E+21
Height	9640792.3782422