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

1981815 (number)

1981815 is an odd 7-digits composite number following 1981814 and preceding 1981816. In scientific notation, it is written as 1.981815 × 10^6. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 960800 positive integers (up to 1981815) that are relatively prime to 1981815.

Interesting facts

1981815 has 8 divisors, whose sum is 2306304
The reverse of 1981815 is 5181891
Previous prime number is 11

Basic properties

Is Prime? no
Number parity odd
Number length 7
Sum of Digits 33
Digital Root 6

Name

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

Notation

Scientific notation	1.981815 × 10^6
Engineering notation	1.981815 × 10^6

Prime Factorization of 1981815

Prime Factorization 15 × 11 × 12011

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	1981815	Product of the distinct prime numbers

The prime factorization of 1981815 is 15 × 11 × 12011. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 5, 74, 4, 404, 216, 6425, 993, 54194, 31923, 678119, 362267, 9215964, 7668595, 63659323, 41852098, 893694824, 13957358, 3053742652, 2739019577

Basic calculations (n = 1981815)

Multiplication

n×y

n×2	3963630
n×3	5945445
n×4	7927260
n×5	9909075

Division

n÷y

n÷2	990907.5
n÷3	660605
n÷3	495453.75
n÷5	396363

Exponentiation

n^y

n²	3927590694225
n³	7783758151675518375
n⁴	1.5425968661363E+25
n⁵	3.0571416082619E+31

Nth Root

^y√n

²√n	1407.7695123848
³√n	125.60908067875
⁴√n	37.520254695094
⁵√n	18.172413999108

Divisors of 1981815

1, 11, 15, 165, 12011, 132121, 180165, 1981815

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	-1981814	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 1981815 can be divided by 8 positive divisors. The sum of these divisors (counting 1981815) is 1, the average is 0.125.

Base conversion 1981815

Base	System	Value
2	Binary	111100011110101110111
3	Ternary	10201200112120
4	Quaternary	13203311313
5	Quinary	1001404230
6	Senary	110251023
8	Octal	7436567
10	Decimal	1981815
12	Duodecimal	7b6a73
16	Hexadecimal	1e3d77
20	Vigesimal	c7eaf
36	Base36	16h6f

Cryptographic Hash Functions

md5	e505b80e941f9cc84f669426f4e4dbc7
sha1	734f80bdcec6bda02a77e1c7cded010db118f73a
sha256	5c31c0465886cad86bfae90d6ecfd7fb0073b95a4226fd685136c20bf0db166e
sha512	e3fe46f308dce2879134079fa3b0124d51c82a2f33e5842ff012e73df8b442c51d0505c2171b455f70cb5b17da7596755936e31d6970b9243b6da794734cb0ae
ripemd-160	64c38f6109e2205288a31e57fc95912454ade750

1981815 as geometric shapes

Circle

Radius = n

Diameter	3963630
Circumference	12452110.889548
Area	12338890071285

Sphere

Radius = n

Volume	3.2604529902165E+19
Surface area	49355560285140
Circumference	12452110.889548

Square

Length = n

Perimeter	7927260
Area	3927590694225
Diagonal	2802709.6511144

Cube

Length = n

Surface area	23565544165350
Volume	7783758151675518375
Space diagonal	3432604.2712021

Equilateral Triangle

Length = n

Perimeter	5945445
Area	1700696658433.1
Altitude	1716302.1356011

Triangular Pyramid

Length = n

Surface area	1700696658433.1
Volume	9.1732469536097E+17
Height	934236.55037148