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

12891908 (number)

12891908 is an even 8-digits composite number following 12891907 and preceding 12891909. In scientific notation, it is written as 1.2891908 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors. There are 6237960 positive integers (up to 12891908) that are relatively prime to 12891908.

Interesting facts

12891908 has 12 divisors, whose sum is 23288832
The reverse of 12891908 is 80919821
Previous prime number is 31

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	twelve million eight hundred ninety-one thousand nine hundred eight

Notation

Scientific notation	1.2891908 × 10^7
Engineering notation	1.2891908 × 10^6

Prime Factorization of 12891908

Prime Factorization 2 × 2 × 31 × 103967

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	6445954	Product of the distinct prime numbers

The prime factorization of 12891908 is 2 × 2 × 31 × 103967. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 7, 50, 25, 846, 17, 3168, 8839, 62509, 98672, 685060, 168262, 2353814, 4300745, 48166497, 78776821, 951311203, 462227463, 1455978390, 8596414936

Basic calculations (n = 12891908)

Multiplication

n×y

n×2	25783816
n×3	38675724
n×4	51567632
n×5	64459540

Division

n÷y

n÷2	6445954
n÷3	4297302.6666667
n÷3	3222977
n÷5	2578381.6

Exponentiation

n^y

n²	166201291880464
n³	2.1426517644041E+21
n⁴	2.7622869422735E+28
n⁵	3.5611149129392E+35

Nth Root

^y√n

²√n	3590.5303229467
³√n	234.47996064454
⁴√n	59.92103406106
⁵√n	26.427947751078

Divisors of 12891908

1, 2, 4, 31, 62, 124, 103967, 207934, 415868, 3222977, 6445954, 12891908

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-12891907	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12891908 can be divided by 12 positive divisors. The sum of these divisors (counting 12891908) is 1, the average is 0.083333333333333.

Base conversion 12891908

Base	System	Value
2	Binary	110001001011011100000100
3	Ternary	220020222101002
4	Quaternary	301023130010
5	Quinary	11300020113
6	Senary	1140152432
8	Octal	61133404
10	Decimal	12891908
12	Duodecimal	4398718
16	Hexadecimal	c4b704
20	Vigesimal	40b9f8
36	Base36	7obgk

Cryptographic Hash Functions

md5	949b203042a5ab740845df4108ff467c
sha1	62cd0c418f8db9a0bb2fe4833bd51067d221e4ff
sha256	ff9ede938db6bdf0736733cab1b9ff4463bb96a95f8c1e75faf39a1ee769b431
sha512	17ea4b3f355f47e1e54bb232007ea65b198684824201cb80e3fbf01946aee41967cf4687b9aca12ccb03c51f8b017cc36e33e56e7ac0dd8e47bf9c51e9a7c424
ripemd-160	a43953bf5f24b2784c56bd797fe89fcc7c63a421

12891908 as geometric shapes

Circle

Radius = n

Diameter	25783816
Circumference	81002246.927111
Area	5.221367575888E+14

Sphere

Radius = n

Volume	8.9751187230041E+21
Surface area	2.0885470303552E+15
Circumference	81002246.927111

Square

Length = n

Perimeter	51567632
Area	166201291880464
Diagonal	18231911.138466

Cube

Length = n

Surface area	997207751282784
Volume	2.1426517644041E+21
Space diagonal	22329439.662504

Equilateral Triangle

Length = n

Perimeter	38675724
Area	71967270455137
Altitude	11164719.831252

Triangular Pyramid

Length = n

Surface area	71967270455137
Volume	2.5251393205524E+20
Height	6077303.7128221