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

81965 (number)

81965 is an odd 5-digits composite number following 81964 and preceding 81966. In scientific notation, it is written as 8.1965 × 10^4. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 59904 positive integers (up to 81965) that are relatively prime to 81965.

Interesting facts

81965 has 8 divisors, whose sum is 99960
The reverse of 81965 is 56918
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 5
Sum of Digits 29
Digital Root 2

Name

Name	eighty-one thousand nine hundred sixty-five

Notation

Scientific notation	8.1965 × 10^4
Engineering notation	8.1965 × 10^3

Prime Factorization of 81965

Prime Factorization 169 × 5 × 97

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81965	Product of the distinct prime numbers

The prime factorization of 81965 is 169 × 5 × 97. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 5, 74, 45, 187, 943, 1797, 8928, 18285, 6602, 868821, 17472, 7099872, 3815836, 85249643, 76290818, 713237519, 355202810, 451632801, 4820421877

Basic calculations (n = 81965)

Multiplication

n×y

n×2	163930
n×3	245895
n×4	327860
n×5	409825

Division

n÷y

n÷2	40982.5
n÷3	27321.666666667
n÷3	20491.25
n÷5	16393

Exponentiation

n^y

n²	6718261225
n³	550662281307125
n⁴	4.5135033887339E+19
n⁵	3.6994930525757E+24

Nth Root

^y√n

²√n	286.29530209209
³√n	43.438632805197
⁴√n	16.920263062142
⁵√n	9.6100509157399

Divisors of 81965

1, 5, 97, 169, 485, 845, 16393, 81965

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	-81964	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 81965 can be divided by 8 positive divisors. The sum of these divisors (counting 81965) is 1, the average is 0.125.

Base conversion 81965

Base	System	Value
2	Binary	10100000000101101
3	Ternary	11011102202
4	Quaternary	110000231
5	Quinary	10110330
6	Senary	1431245
8	Octal	240055
10	Decimal	81965
12	Duodecimal	3b525
16	Hexadecimal	1402d
20	Vigesimal	a4i5
36	Base36	1r8t

Cryptographic Hash Functions

md5	f8f7e58cbb4493a4150ff59b996796fc
sha1	2fdfbc7255cb94ea16f733aa081fadd50b4b1941
sha256	7b0d8ed05d21eff16d12510ca5a7c04e1f22af16ec5a6fd583c30b6ec2be6798
sha512	bd189fdc60f42f642b2837ffaf3b446b9c10dde5146ba89b500722388526bd50af4b611405542ad785f65df826cf124e6ac243100d768dd1d445adb2bfb5c871
ripemd-160	b8aaf036762388b8a496f16655aaf3d41b411a92

81965 as geometric shapes

Circle

Radius = n

Diameter	163930
Circumference	515001.28370297
Area	21106040109.357

Sphere

Radius = n

Volume	2.3066087700846E+15
Surface area	84424160437.429
Circumference	515001.28370297

Square

Length = n

Perimeter	327860
Area	6718261225
Diagonal	115916.01463991

Cube

Length = n

Surface area	40309567350
Volume	550662281307125
Space diagonal	141967.54444238

Equilateral Triangle

Length = n

Perimeter	245895
Area	2909092445.055
Altitude	70983.772221192

Triangular Pyramid

Length = n

Surface area	2909092445.055
Volume	64896172209320
Height	38638.671546637