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

1981818 (number)

1981818 is an even 7-digits composite number following 1981817 and preceding 1981819. In scientific notation, it is written as 1.981818 × 10^6. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 631752 positive integers (up to 1981818) that are relatively prime to 1981818.

Interesting facts

1981818 has 16 divisors, whose sum is 4021920
The reverse of 1981818 is 8181891
Previous prime number is 69

Basic properties

Is Prime? no
Number parity even
Number length 7
Sum of Digits 36
Digital Root 9

Name

Name	one million nine hundred eighty-one thousand eight hundred eighteen

Notation

Scientific notation	1.981818 × 10^6
Engineering notation	1.981818 × 10^6

Prime Factorization of 1981818

Prime Factorization 2 × 3 × 69 × 4787

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	1981818	Product of the distinct prime numbers

The prime factorization of 1981818 is 2 × 3 × 69 × 4787. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 3, 22, 19, 880, 221, 1719, 3684, 8626, 34833, 443916, 464477, 1939372, 4828601, 5459624, 83273407, 285767409, 1034118, 3460059178, 6022936788

Basic calculations (n = 1981818)

Multiplication

n×y

n×2	3963636
n×3	5945454
n×4	7927272
n×5	9909090

Division

n÷y

n÷2	990909
n÷3	660606
n÷3	495454.5
n÷5	396363.6

Exponentiation

n^y

n²	3927602585124
n³	7783793500045275432
n⁴	1.5426062066673E+25
n⁵	3.0571647472849E+31

Nth Root

^y√n

²√n	1407.7705778997
³√n	125.60914405954
⁴√n	37.520268894288
⁵√n	18.172419500854

Divisors of 1981818

1, 2, 3, 6, 69, 138, 207, 414, 4787, 9574, 14361, 28722, 330303, 660606, 990909, 1981818

16 divisors

τ	Total Divisors	16	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-1981817	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.0625	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	16	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1981818 can be divided by 16 positive divisors. The sum of these divisors (counting 1981818) is 1, the average is 0.0625.

Base conversion 1981818

Base	System	Value
2	Binary	111100011110101111010
3	Ternary	10201200112200
4	Quaternary	13203311322
5	Quinary	1001404233
6	Senary	110251030
8	Octal	7436572
10	Decimal	1981818
12	Duodecimal	7b6a76
16	Hexadecimal	1e3d7a
20	Vigesimal	c7eai
36	Base36	16h6i

Cryptographic Hash Functions

md5	ea6cf704f18a262688088f42e0db26f3
sha1	d68d189d118407a3bd310a98b8bce5c6aac3f7b5
sha256	b557af5ac8475ce9ea986c7f3b47419002a704a9cbaf19e6e854a47a8d1be671
sha512	65652024c7a0d1f689de992489f2f5991916e73dbd7c7956c1dffdfe9de747b327aa7d24e25cbcd1dbadd77bfa3cf9085d1b8f0b5f8685f292121cdba7fb34a1
ripemd-160	3fb8293d0ab3beef13cfc094a5670f2fb7141af2

1981818 as geometric shapes

Circle

Radius = n

Diameter	3963636
Circumference	12452129.739104
Area	12338927427646

Sphere

Radius = n

Volume	3.260467796907E+19
Surface area	49355709710583
Circumference	12452129.739104

Square

Length = n

Perimeter	7927272
Area	3927602585124
Diagonal	2802713.8937551

Cube

Length = n

Surface area	23565615510744
Volume	7783793500045275432
Space diagonal	3432609.4673545

Equilateral Triangle

Length = n

Perimeter	5945454
Area	1700701807343.4
Altitude	1716304.7336773

Triangular Pyramid

Length = n

Surface area	1700701807343.4
Volume	9.173288612063E+17
Height	934237.96458504