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

1991491 (number)

1991491 is an odd 7-digits prime number following 1991490 and preceding 1991492. In scientific notation, it is written as 1.991491 × 10^6. The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors. There are 1991490 positive integers (up to 1991491) that are relatively prime to 1991491.

Interesting facts

1991491 has 2 divisors, whose sum is 1991492
The reverse of 1991491 is 1941991
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 7
Sum of Digits 34
Digital Root 7

Name

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

Notation

Scientific notation	1.991491 × 10^6
Engineering notation	1.991491 × 10^6

Prime Factorization of 1991491

Prime Factorization 1991491

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	1991491	Product of the distinct prime numbers

The prime factorization of 1991491 is 1991491. Since it has a total of 1 prime factors.

Most popular turbo-numbers

5, 8, 3, 95, 872, 925, 2215, 9584, 99638, 66545, 682674, 949325, 3226474, 9169551, 37943335, 60107927, 898691122, 840267074, 770049048, 7164305944

Basic calculations (n = 1991491)

Multiplication

n×y

n×2	3982982
n×3	5974473
n×4	7965964
n×5	9957455

Division

n÷y

n÷2	995745.5
n÷3	663830.33333333
n÷3	497872.75
n÷5	398298.2

Exponentiation

n^y

n²	3966036403081
n³	7898325802408183771
n⁴	1.5729444750564E+25
n⁵	3.1325047655745E+31

Nth Root

^y√n

²√n	1411.2019699533
³√n	125.81317319039
⁴√n	37.565968241924
⁵√n	18.190124419068

Divisors of 1991491

1, 1991491

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	1991492	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	995746	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	1411.2023242611	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999989957278	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1991491 can be divided by 2 positive divisors. The sum of these divisors (counting 1991491) is 1991492, the average is 995746.

Base conversion 1991491

Base	System	Value
2	Binary	111100110001101000011
3	Ternary	10202011210221
4	Quaternary	13212031003
5	Quinary	1002211431
6	Senary	110403511
8	Octal	7461503
10	Decimal	1991491
12	Duodecimal	800597
16	Hexadecimal	1e6343
20	Vigesimal	c8ieb
36	Base36	16on7

Cryptographic Hash Functions

md5	cea2e74c04546c1ad72c3e28e52e3b9c
sha1	1249286dfe1ac72a386793b651e6e7c104045f61
sha256	ae057e968dff11ec0da6b09d66659ff5cb7567ad38c68991fc0d957714a014d3
sha512	440ce91cd96619d98a0fe14f4dc0aa9f3565a1f06ce37a19142c9e6c9172e5dccc51ff1e41e000a61ec740a7ff8cdd3c219c158aa09dbb4d92bff218b67aca8b
ripemd-160	9c2aad65f5cc55bb3fc24120043ce473b4e6aa39

1991491 as geometric shapes

Circle

Radius = n

Diameter	3982982
Circumference	12512906.99058
Area	12459670827789

Sphere

Radius = n

Volume	3.3084429755339E+19
Surface area	49838683311156
Circumference	12512906.99058

Square

Length = n

Perimeter	7965964
Area	3966036403081
Diagonal	2816393.581544

Cube

Length = n

Surface area	23796218418486
Volume	7898325802408183771
Space diagonal	3449363.5948162

Equilateral Triangle

Length = n

Perimeter	5974473
Area	1717344138701
Altitude	1724681.7974081

Triangular Pyramid

Length = n

Surface area	1717344138701
Volume	9.3082662248392E+17
Height	938797.86051465