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

82720981 (number)

82720981 is an odd 8-digits composite number following 82720980 and preceding 82720982. In scientific notation, it is written as 8.2720981 × 10^7. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 70844928 positive integers (up to 82720981) that are relatively prime to 82720981.

Interesting facts

82720981 has 8 divisors, whose sum is 94616640
The reverse of 82720981 is 18902728
Previous prime number is 1409

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1

Name

Name	eighty-two million seven hundred twenty thousand nine hundred eighty-one

Notation

Scientific notation	8.2720981 × 10^7
Engineering notation	8.2720981 × 10^6

Prime Factorization of 82720981

Prime Factorization 7 × 1409 × 8387

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	82720981	Product of the distinct prime numbers

The prime factorization of 82720981 is 7 × 1409 × 8387. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 8, 53, 19, 326, 880, 2525, 7293, 56057, 59472, 229705, 30530, 3786840, 5215086, 33192727, 93612752, 295722624, 786925824, 9281706145, 4710956052

Basic calculations (n = 82720981)

Multiplication

n×y

n×2	165441962
n×3	248162943
n×4	330883924
n×5	413604905

Division

n÷y

n÷2	41360490.5
n÷3	27573660.333333
n÷3	20680245.25
n÷5	16544196.2

Exponentiation

n^y

n²	6842760697602361
n³	5.6603987765391E+23
n⁴	4.6823373964652E+31
n⁵	3.8732754280858E+39

Nth Root

^y√n

²√n	9095.1075309751
³√n	435.71772297617
⁴√n	95.368273188598
⁵√n	38.328615782858

Divisors of 82720981

1, 7, 1409, 8387, 9863, 58709, 11817283, 82720981

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	-82720980	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 82720981 can be divided by 8 positive divisors. The sum of these divisors (counting 82720981) is 1, the average is 0.125.

Base conversion 82720981

Base	System	Value
2	Binary	100111011100011100011010101
3	Ternary	12202122122212001
4	Quaternary	10323203203111
5	Quinary	132134032411
6	Senary	12112555301
8	Octal	473434325
10	Decimal	82720981
12	Duodecimal	23852b31
16	Hexadecimal	4ee38d5
20	Vigesimal	15h0291
36	Base36	1d8zx1

Cryptographic Hash Functions

md5	563440f11c610eba6fe73ab5f899d785
sha1	6a1e80067364b60f5fd672ea6e6eaad43b387629
sha256	66aa80c5250528d122a658c52191e3f105aadbbcfe1fd35b163e69c7e2bddf3d
sha512	eb2f9f44749ae0701c0db6622f28688e089f8e63808865a426057de91f47d6ba8e3188cc430f65825a165d48cd313d3d1420588104a4735aad2c90e082ee3c12
ripemd-160	ab2aea37af76c2ec1d82066b51b240f278444f49

82720981 as geometric shapes

Circle

Radius = n

Diameter	165441962
Circumference	519751252.41468
Area	2.1497166737861E+16

Sphere

Radius = n

Volume	2.3710222950352E+24
Surface area	8.5988666951442E+16
Circumference	519751252.41468

Square

Length = n

Perimeter	330883924
Area	6842760697602361
Diagonal	116985133.22301

Cube

Length = n

Surface area	41056564185614166
Volume	5.6603987765391E+23
Space diagonal	143276941.94394

Equilateral Triangle

Length = n

Perimeter	248162943
Area	2.9630022980707E+15
Altitude	71638470.97197

Triangular Pyramid

Length = n

Surface area	2.9630022980707E+15
Volume	6.6708439318514E+22
Height	38995044.407669