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

12811921 (number)

12811921 is an odd 8-digits composite number following 12811920 and preceding 12811922. In scientific notation, it is written as 1.2811921 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 12793572 positive integers (up to 12811921) that are relatively prime to 12811921.

Interesting facts

12811921 has 4 divisors, whose sum is 12830272
The reverse of 12811921 is 12911821
Previous prime number is 727

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7

Name

Name	twelve million eight hundred eleven thousand nine hundred twenty-one

Notation

Scientific notation	1.2811921 × 10^7
Engineering notation	1.2811921 × 10^6

Prime Factorization of 12811921

Prime Factorization 727 × 17623

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	12811921	Product of the distinct prime numbers

The prime factorization of 12811921 is 727 × 17623. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 3, 9, 99, 255, 315, 4561, 7666, 23474, 31987, 637110, 595757, 7149950, 1072206, 28093118, 65743818, 644838431, 571943774, 1540531695, 2440592559

Basic calculations (n = 12811921)

Multiplication

n×y

n×2	25623842
n×3	38435763
n×4	51247684
n×5	64059605

Division

n÷y

n÷2	6405960.5
n÷3	4270640.3333333
n÷3	3202980.25
n÷5	2562384.2

Exponentiation

n^y

n²	164145319710241
n³	2.1030168686474E+21
n⁴	2.6943685982777E+28
n⁵	3.4520037626015E+35

Nth Root

^y√n

²√n	3579.3743866771
³√n	233.99401572345
⁴√n	59.827872991417
⁵√n	26.395071964587

Divisors of 12811921

1, 727, 17623, 12811921

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	-12811920	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 12811921 can be divided by 4 positive divisors. The sum of these divisors (counting 12811921) is 1, the average is 0.25.

Base conversion 12811921

Base	System	Value
2	Binary	110000110111111010010001
3	Ternary	220002220122121
4	Quaternary	300313322101
5	Quinary	11234440141
6	Senary	1134334241
8	Octal	60677221
10	Decimal	12811921
12	Duodecimal	435a381
16	Hexadecimal	c37e91
20	Vigesimal	4019g1
36	Base36	7mlqp

Cryptographic Hash Functions

md5	ea411da3674ef6763cae6b7ff01a00e3
sha1	a9640e0e7a2954bee759d0b2d8665a9c115fefd5
sha256	570628df5b091db1b4e319ac613e75e747673af572d5fc4f3df3b18107cac66e
sha512	e1733db1d422ad6d157c3fe9f56edef166322cead001e5eb92b85164e9efa070aa3b8ddc57ea249ce80669cc679ce8070c6ccf734559fe20ec4bb218a84e6817
ripemd-160	cf8afbf7d4e34636e39c8f5c15f5a1e9dc3cc22e

12811921 as geometric shapes

Circle

Radius = n

Diameter	25623842
Circumference	80499673.783946
Area	5.1567773052284E+14

Sphere

Radius = n

Volume	8.8090964598906E+21
Surface area	2.0627109220914E+15
Circumference	80499673.783946

Square

Length = n

Perimeter	51247684
Area	164145319710241
Diagonal	18118792.438253

Cube

Length = n

Surface area	984871918261446
Volume	2.1030168686474E+21
Space diagonal	22190898.114559

Equilateral Triangle

Length = n

Perimeter	38435763
Area	71077008390694
Altitude	11095449.057279

Triangular Pyramid

Length = n

Surface area	71077008390694
Volume	2.4784291479504E+20
Height	6039597.4794176