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

81636761 (number)

81636761 is an odd 8-digits prime number following 81636760 and preceding 81636762. In scientific notation, it is written as 8.1636761 × 10^7. The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors. There are 81636760 positive integers (up to 81636761) that are relatively prime to 81636761.

Interesting facts

81636761 has 2 divisors, whose sum is 81636762
The reverse of 81636761 is 16763618
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	eighty-one million six hundred thirty-six thousand seven hundred sixty-one

Notation

Scientific notation	8.1636761 × 10^7
Engineering notation	8.1636761 × 10^6

Prime Factorization of 81636761

Prime Factorization 81636761

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	81636761	Product of the distinct prime numbers

The prime factorization of 81636761 is 81636761. Since it has a total of 1 prime factors.

Most popular turbo-numbers

6, 8, 15, 88, 662, 900, 8504, 21, 71722, 57270, 539912, 104684, 7878369, 9743634, 87591221, 6322749, 970663575, 109245125, 122115959, 2998181188

Basic calculations (n = 81636761)

Multiplication

n×y

n×2	163273522
n×3	244910283
n×4	326547044
n×5	408183805

Division

n÷y

n÷2	40818380.5
n÷3	27212253.666667
n÷3	20409190.25
n÷5	16327352.2

Exponentiation

n^y

n²	6664560746571121
n³	5.4407315283781E+23
n⁴	4.4416369944737E+31
n⁵	3.626008577666E+39

Nth Root

^y√n

²√n	9035.3063589454
³√n	433.80570100253
⁴√n	95.054228516913
⁵√n	38.22761056509

Divisors of 81636761

1, 81636761

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	81636762	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	40818381	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	9035.3064142839	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999999755012	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81636761 can be divided by 2 positive divisors. The sum of these divisors (counting 81636761) is 81636762, the average is 40818381.

Base conversion 81636761

Base	System	Value
2	Binary	100110111011010110110011001
3	Ternary	12200121120120202
4	Quaternary	10313122312121
5	Quinary	131344334021
6	Senary	12033431545
8	Octal	467326631
10	Decimal	81636761
12	Duodecimal	2340b5b5
16	Hexadecimal	4ddad99
20	Vigesimal	15a4bi1
36	Base36	1clrbt

Cryptographic Hash Functions

md5	24480795afa41b3cece1be7544aaef0f
sha1	e64918a2289eae5611e7947d8765b83f3e96305f
sha256	ca39d39116eb821e8ddc78ea194f23604bfdd434eb8850cad8cfafd2ecec2c4f
sha512	446493c2147b187def3e2232ef5e886887922bc55033c8a5dcdf8c6c5326a9c41faec1a0af6e8f750617d88e82da0c19cb3732d2a97874fa5eef02ea916b13a7
ripemd-160	318ce502d0374ff4c38c51f191b19cf9cddedf4b

81636761 as geometric shapes

Circle

Radius = n

Diameter	163273522
Circumference	512938897.24093
Area	2.0937335080831E+16

Sphere

Radius = n

Volume	2.2790082932943E+24
Surface area	8.3749340323323E+16
Circumference	512938897.24093

Square

Length = n

Perimeter	326547044
Area	6664560746571121
Diagonal	115451814.59441

Cube

Length = n

Surface area	39987364479426726
Volume	5.4407315283781E+23
Space diagonal	141399017.81736

Equilateral Triangle

Length = n

Perimeter	244910283
Area	2.8858394557976E+15
Altitude	70699508.908679

Triangular Pyramid

Length = n

Surface area	2.8858394557976E+15
Volume	6.4119635972193E+22
Height	38483938.198137