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

1991438 (number)

1991438 is an even 7-digits composite number following 1991437 and preceding 1991439. In scientific notation, it is written as 1.991438 × 10^6. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 995718 positive integers (up to 1991438) that are relatively prime to 1991438.

Interesting facts

1991438 has 4 divisors, whose sum is 2987160
The reverse of 1991438 is 8341991
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 7
Sum of Digits 35
Digital Root 8

Name

Name	one million nine hundred ninety-one thousand four hundred thirty-eight

Notation

Scientific notation	1.991438 × 10^6
Engineering notation	1.991438 × 10^6

Prime Factorization of 1991438

Prime Factorization 2 × 995719

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	1991438	Product of the distinct prime numbers

The prime factorization of 1991438 is 2 × 995719. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 2, 47, 50, 384, 994, 9265, 1849, 2218, 9614, 589215, 998142, 2057706, 4369662, 5782739, 94285889, 775261366, 359927038, 6619015495, 2246313740

Basic calculations (n = 1991438)

Multiplication

n×y

n×2	3982876
n×3	5974314
n×4	7965752
n×5	9957190

Division

n÷y

n÷2	995719
n÷3	663812.66666667
n÷3	497859.5
n÷5	398287.6

Exponentiation

n^y

n²	3965825307844
n³	7897695219402239672
n⁴	1.5727770372336E+25
n⁵	3.1320879574744E+31

Nth Root

^y√n

²√n	1411.1831915099
³√n	125.81205708235
⁴√n	37.56571830153
⁵√n	18.190027598459

Divisors of 1991438

1, 2, 995719, 1991438

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	-1991437	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 1991438 can be divided by 4 positive divisors. The sum of these divisors (counting 1991438) is 1, the average is 0.25.

Base conversion 1991438

Base	System	Value
2	Binary	111100110001100001110
3	Ternary	10202011201222
4	Quaternary	13212030032
5	Quinary	1002211223
6	Senary	110403342
8	Octal	7461416
10	Decimal	1991438
12	Duodecimal	800552
16	Hexadecimal	1e630e
20	Vigesimal	c8ibi
36	Base36	16olq

Cryptographic Hash Functions

md5	f45de0cc816d23f4781002e6475ac96f
sha1	eed1711007c2188a4ce2a0179f03184defdd5210
sha256	428abce0b8415ea9b1c141b2928f22487050be20ab1715dcec80d9a34fe467c3
sha512	e5ab315488fd057cfe62b8a7e7fc362dbc611a7110887fbe385540d8e38ab7a2a28577a511d499c449ea190e485d7def76b2a0a5e8bbfd1b9a72e8dbf14e82f8
ripemd-160	f95f483505393b80cc683dd12d482affe89f89e5

1991438 as geometric shapes

Circle

Radius = n

Diameter	3982876
Circumference	12512573.981759
Area	12459007652543

Sphere

Radius = n

Volume	3.308178837542E+19
Surface area	49836030610173
Circumference	12512573.981759

Square

Length = n

Perimeter	7965752
Area	3965825307844
Diagonal	2816318.6282252

Cube

Length = n

Surface area	23794951847064
Volume	7897695219402239672
Space diagonal	3449271.7961233

Equilateral Triangle

Length = n

Perimeter	5974314
Area	1717252731782.1
Altitude	1724635.8980617

Triangular Pyramid

Length = n

Surface area	1717252731782.1
Volume	9.3075230756398E+17
Height	938772.87607505