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

1991009 (number)

1991009 is an odd 7-digits composite number following 1991008 and preceding 1991010. In scientific notation, it is written as 1.991009 × 10^6. The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors. There are 1988016 positive integers (up to 1991009) that are relatively prime to 1991009.

Interesting facts

1991009 has 4 divisors, whose sum is 1994004
The reverse of 1991009 is 9001991
Previous prime number is 997

Basic properties

Is Prime? no
Number parity odd
Number length 7
Sum of Digits 29
Digital Root 2

Name

Name	one million nine hundred ninety-one thousand nine

Notation

Scientific notation	1.991009 × 10^6
Engineering notation	1.991009 × 10^6

Prime Factorization of 1991009

Prime Factorization 997 × 1997

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	1991009	Product of the distinct prime numbers

The prime factorization of 1991009 is 997 × 1997. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 8, 26, 79, 68, 584, 8874, 7611, 98788, 12254, 16430, 376800, 270151, 2150823, 6262211, 98574724, 881011032, 794962349, 9390020824, 4836118556

Basic calculations (n = 1991009)

Multiplication

n×y

n×2	3982018
n×3	5973027
n×4	7964036
n×5	9955045

Division

n÷y

n÷2	995504.5
n÷3	663669.66666667
n÷3	497752.25
n÷5	398201.8

Exponentiation

n^y

n²	3964116838081
n³	7892592301670813729
n⁴	1.5714222305957E+25
n⁵	3.1287158039162E+31

Nth Root

^y√n

²√n	1411.0311832132
³√n	125.8030221959
⁴√n	37.563695015443
⁵√n	18.189243823685

Divisors of 1991009

1, 997, 1997, 1991009

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	-1991008	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 1991009 can be divided by 4 positive divisors. The sum of these divisors (counting 1991009) is 1, the average is 0.25.

Base conversion 1991009

Base	System	Value
2	Binary	111100110000101100001
3	Ternary	10202011011002
4	Quaternary	13212011201
5	Quinary	1002203014
6	Senary	110401345
8	Octal	7460541
10	Decimal	1991009
12	Duodecimal	800255
16	Hexadecimal	1e6161
20	Vigesimal	c8ha9
36	Base36	16o9t

Cryptographic Hash Functions

md5	963e03aa1f091dfb30ad2a8eda44c6c8
sha1	8cd633ac73f2c6a564827ac32141efb0be77f7da
sha256	ac845a863fb1512af00fe7f1027b2cdcee42d25fd3ab248a41747a14f420c93c
sha512	5e98d0da75655c733433f722f109eaa997109ef17ee8351b9751221f3212d28c1cfba3248f8d9d46f0203d6a3b0412d9c31f1b48dbbb3373d77ddd41e946ccf7
ripemd-160	e90ffa6bd14f8c5f334cd1a57a05ea27a05432e2

1991009 as geometric shapes

Circle

Radius = n

Diameter	3982018
Circumference	12509878.495262
Area	12453640336487

Sphere

Radius = n

Volume	3.3060413323611E+19
Surface area	49814561345947
Circumference	12509878.495262

Square

Length = n

Perimeter	7964036
Area	3964116838081
Diagonal	2815711.9306069

Cube

Length = n

Surface area	23784701028486
Volume	7892592301670813729
Space diagonal	3448528.7463269

Equilateral Triangle

Length = n

Perimeter	5973027
Area	1716512942673.9
Altitude	1724264.3731635

Triangular Pyramid

Length = n

Surface area	1716512942673.9
Volume	9.3015092294203E+17
Height	938570.64353563