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

1991421 (number)

1991421 is an odd 7-digits composite number following 1991420 and preceding 1991422. In scientific notation, it is written as 1.991421 × 10^6. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 1321920 positive integers (up to 1991421) that are relatively prime to 1991421.

Interesting facts

1991421 has 8 divisors, whose sum is 2222200
The reverse of 1991421 is 1241991
Previous prime number is 541

Basic properties

Is Prime? no
Number parity odd
Number length 7
Sum of Digits 27
Digital Root 9

Name

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

Notation

Scientific notation	1.991421 × 10^6
Engineering notation	1.991421 × 10^6

Prime Factorization of 1991421

Prime Factorization 9 × 541 × 409

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	1991421	Product of the distinct prime numbers

The prime factorization of 1991421 is 9 × 541 × 409. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 8, 12, 72, 182, 68, 4408, 2219, 89186, 65469, 315846, 216747, 4664970, 3447530, 65785260, 43662501, 226203537, 643495086, 7407132104, 1980495270

Basic calculations (n = 1991421)

Multiplication

n×y

n×2	3982842
n×3	5974263
n×4	7965684
n×5	9957105

Division

n÷y

n÷2	995710.5
n÷3	663807
n÷3	497855.25
n÷5	398284.2

Exponentiation

n^y

n²	3965757599241
n³	7897492964038111461
n⁴	1.5727233335938E+25
n⁵	3.1319542737086E+31

Nth Root

^y√n

²√n	1411.1771681826
³√n	125.81169908124
⁴√n	37.565638130912
⁵√n	18.189996542355

Divisors of 1991421

1, 9, 409, 541, 3681, 4869, 221269, 1991421

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-1991420	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1991421 can be divided by 8 positive divisors. The sum of these divisors (counting 1991421) is 1, the average is 0.125.

Base conversion 1991421

Base	System	Value
2	Binary	111100110001011111101
3	Ternary	10202011201100
4	Quaternary	13212023331
5	Quinary	1002211141
6	Senary	110403313
8	Octal	7461375
10	Decimal	1991421
12	Duodecimal	800539
16	Hexadecimal	1e62fd
20	Vigesimal	c8ib1
36	Base36	16ol9

Cryptographic Hash Functions

md5	91d31870a8f42065fcf192798dccb5c7
sha1	c7ae5b21236b835740f9172bac104342604aa1e5
sha256	4c000b1693b0be7462ebd98726cb6cd7420cd630041e2472857942ecb201e748
sha512	39976f148f74c3fbab054f8ad4bf99f84c41542a3fcdee4e5721f0a801e60e6fac58b820c340eb76ad32c6c97ccd2f3063b20c2fedc6c9a7414d119a0c6b96c3
ripemd-160	8eca6733ebfc2eb36097f19d079fbc52a762228a

1991421 as geometric shapes

Circle

Radius = n

Diameter	3982842
Circumference	12512467.167609
Area	12458794939693

Sphere

Radius = n

Volume	3.3080941170132E+19
Surface area	49835179758774
Circumference	12512467.167609

Square

Length = n

Perimeter	7965684
Area	3965757599241
Diagonal	2816294.5865946

Cube

Length = n

Surface area	23794545595446
Volume	7897492964038111461
Space diagonal	3449242.3512596

Equilateral Triangle

Length = n

Perimeter	5974263
Area	1717223413096.9
Altitude	1724621.1756298

Triangular Pyramid

Length = n

Surface area	1717223413096.9
Volume	9.3072847154073E+17
Height	938764.8621982