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

1981808 (number)

1981808 is an even 7-digits composite number following 1981807 and preceding 1981809. In scientific notation, it is written as 1.981808 × 10^6. The sum of its digits is 35. It has a total of 5 prime factors and 10 positive divisors. There are 990896 positive integers (up to 1981808) that are relatively prime to 1981808.

Interesting facts

1981808 has 10 divisors, whose sum is 3839784
The reverse of 1981808 is 8081891
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 eighty-one thousand eight hundred eight

Notation

Scientific notation	1.981808 × 10^6
Engineering notation	1.981808 × 10^6

Prime Factorization of 1981808

Prime Factorization 2 × 2 × 2 × 2 × 123863

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	5	Total number of prime factors
rad	Radical	247726	Product of the distinct prime numbers

The prime factorization of 1981808 is 2 × 2 × 2 × 2 × 123863. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 6, 23, 45, 595, 581, 5690, 9846, 88909, 33464, 751081, 658286, 2790362, 9023862, 96938072, 97864161, 886798169, 758616316, 5252172602, 1827094092

Basic calculations (n = 1981808)

Multiplication

n×y

n×2	3963616
n×3	5945424
n×4	7927232
n×5	9909040

Division

n÷y

n÷2	990904
n÷3	660602.66666667
n÷3	495452
n÷5	396361.6

Exponentiation

n^y

n²	3927562948864
n³	7783675672562266112
n⁴	1.5425750717289E+25
n⁵	3.057087617753E+31

Nth Root

^y√n

²√n	1407.7670261801
³√n	125.60893278997
⁴√n	37.52022156358
⁵√n	18.172401161676

Divisors of 1981808

1, 2, 4, 8, 16, 123863, 247726, 495452, 990904, 1981808

10 divisors

τ	Total Divisors	10	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-1981807	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.1	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	10	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1981808 can be divided by 10 positive divisors. The sum of these divisors (counting 1981808) is 1, the average is 0.1.

Base conversion 1981808

Base	System	Value
2	Binary	111100011110101110000
3	Ternary	10201200112022
4	Quaternary	13203311300
5	Quinary	1001404213
6	Senary	110251012
8	Octal	7436560
10	Decimal	1981808
12	Duodecimal	7b6a68
16	Hexadecimal	1e3d70
20	Vigesimal	c7ea8
36	Base36	16h68

Cryptographic Hash Functions

md5	79865134d273a64f6bd13362265ec784
sha1	c27748fb7ee6e21ef88f728348ea43bbaabf9076
sha256	e255559049f3d8e413bda0329b1c5c237caaae757ed23a78ac671080313b9c9b
sha512	cc5641f5d2b9aebd9645b5ca6fca576487f92d5c9cc84aaeb76bc894d2036dd402df6668d5d07e96f1b7ade8156bf79acda389d5607f4ccac347f5ea7c37344b
ripemd-160	d7527c022c7c94348b0692835d2a6a2c756f770f

1981808 as geometric shapes

Circle

Radius = n

Diameter	3963616
Circumference	12452066.907251
Area	12338802906663

Sphere

Radius = n

Volume	3.2604184414463E+19
Surface area	49355211626650
Circumference	12452066.907251

Square

Length = n

Perimeter	7927232
Area	3927562948864
Diagonal	2802699.7516195

Cube

Length = n

Surface area	23565377693184
Volume	7783675672562266112
Space diagonal	3432592.1468465

Equilateral Triangle

Length = n

Perimeter	5945424
Area	1700684644339.4
Altitude	1716296.0734232

Triangular Pyramid

Length = n

Surface area	1700684644339.4
Volume	9.1731497510426E+17
Height	934233.25053983