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

81365511 (number)

81365511 is an odd 8-digits composite number following 81365510 and preceding 81365512. In scientific notation, it is written as 8.1365511 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 54087552 positive integers (up to 81365511) that are relatively prime to 81365511.

Interesting facts

81365511 has 8 divisors, whose sum is 108799600
The reverse of 81365511 is 11556318
Previous prime number is 349

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3

Name

Name	eighty-one million three hundred sixty-five thousand five hundred eleven

Notation

Scientific notation	8.1365511 × 10^7
Engineering notation	8.1365511 × 10^6

Prime Factorization of 81365511

Prime Factorization 3 × 349 × 77713

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81365511	Product of the distinct prime numbers

The prime factorization of 81365511 is 3 × 349 × 77713. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 7, 85, 67, 331, 128, 8969, 7842, 58839, 24686, 317401, 855780, 4524503, 8667867, 97303193, 12199190, 649442251, 457857881, 2448687288, 6278256125

Basic calculations (n = 81365511)

Multiplication

n×y

n×2	162731022
n×3	244096533
n×4	325462044
n×5	406827555

Division

n÷y

n÷2	40682755.5
n÷3	27121837
n÷3	20341377.75
n÷5	16273102.2

Exponentiation

n^y

n²	6620346380291121
n³	5.3866786622939E+23
n⁴	4.3828986195034E+31
n⁵	3.5661678583709E+39

Nth Root

^y√n

²√n	9020.2833104066
³√n	433.32470706036
⁴√n	94.975172073583
⁵√n	38.202173376993

Divisors of 81365511

1, 3, 349, 1047, 77713, 233139, 27121837, 81365511

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	-81365510	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 81365511 can be divided by 8 positive divisors. The sum of these divisors (counting 81365511) is 1, the average is 0.125.

Base conversion 81365511

Base	System	Value
2	Binary	100110110011000101000000111
3	Ternary	12200002210111110
4	Quaternary	10312120220013
5	Quinary	131312144021
6	Senary	12023540103
8	Octal	466305007
10	Decimal	81365511
12	Duodecimal	232ba633
16	Hexadecimal	4d98a07
20	Vigesimal	158adfb
36	Base36	1cfy13

Cryptographic Hash Functions

md5	999bf2faff01143607bd991526b23fd4
sha1	3a048c6310668a9d3dcf6b9b6e40090df336402e
sha256	e3b226c2dfb4c8a7776ce40045a4ca560d1f72578aa9c7176e77a5168328d374
sha512	86507c7911ca206d38fadb59dd8f348dbd537d544227f48da2c5a37376f4ec4769b59615c9a2fa6743d63fd044da791071c92b9f189b03d48c152916570b1505
ripemd-160	708fde2f4fffb607724e9f08ecea4a8c6bc12a8b

81365511 as geometric shapes

Circle

Radius = n

Diameter	162731022
Circumference	511234583.22636
Area	2.0798431552542E+16

Sphere

Radius = n

Volume	2.2563666816948E+24
Surface area	8.3193726210169E+16
Circumference	511234583.22636

Square

Length = n

Perimeter	325462044
Area	6620346380291121
Diagonal	115068209.16562

Cube

Length = n

Surface area	39722078281746726
Volume	5.3866786622939E+23
Space diagonal	140929199.0358

Equilateral Triangle

Length = n

Perimeter	244096533
Area	2.8666940735922E+15
Altitude	70464599.517902

Triangular Pyramid

Length = n

Surface area	2.8666940735922E+15
Volume	6.3482616836348E+22
Height	38356069.721872