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

81642009 (number)

81642009 is an odd 8-digits composite number following 81642008 and preceding 81642010. In scientific notation, it is written as 8.1642009 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 54428004 positive integers (up to 81642009) that are relatively prime to 81642009.

Interesting facts

81642009 has 4 divisors, whose sum is 108856016
The reverse of 81642009 is 90024618
Previous prime number is 3

Basic properties

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

Name

Name	eighty-one million six hundred forty-two thousand nine

Notation

Scientific notation	8.1642009 × 10^7
Engineering notation	8.1642009 × 10^6

Prime Factorization of 81642009

Prime Factorization 3 × 27214003

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81642009	Product of the distinct prime numbers

The prime factorization of 81642009 is 3 × 27214003. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 2, 14, 66, 566, 793, 2827, 8262, 49475, 83931, 853403, 779654, 6147336, 9149486, 45131388, 17248846, 677962480, 27336036, 6062589740, 8572102553

Basic calculations (n = 81642009)

Multiplication

n×y

n×2	163284018
n×3	244926027
n×4	326568036
n×5	408210045

Division

n÷y

n÷2	40821004.5
n÷3	27214003
n÷3	20410502.25
n÷5	16328401.8

Exponentiation

n^y

n²	6665417633556081
n³	5.4417808642754E+23
n⁴	4.442779222972E+31
n⁵	3.627174213069E+39

Nth Root

^y√n

²√n	9035.5967705515
³√n	433.81499650254
⁴√n	95.055756114774
⁵√n	38.228102043045

Divisors of 81642009

1, 3, 27214003, 81642009

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81642008	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81642009 can be divided by 4 positive divisors. The sum of these divisors (counting 81642009) is 1, the average is 0.25.

Base conversion 81642009

Base	System	Value
2	Binary	100110111011100001000011001
3	Ternary	12200121211210010
4	Quaternary	10313130020121
5	Quinary	131400021014
6	Senary	12033512133
8	Octal	467341031
10	Decimal	81642009
12	Duodecimal	23412649
16	Hexadecimal	4ddc219
20	Vigesimal	15a5509
36	Base36	1clvdl

Cryptographic Hash Functions

md5	5b85f9f90d33c44b884541691c94b710
sha1	89c31d8a9362de291625e035fd6fab210d2031e2
sha256	60b9a09ecfa8b1bc7c138251bc8665c28af404f09f6d590abb00406c3a110ae7
sha512	ad444d03d8b07771e741d645e2c3e26ee3581e57a6ead5255c25ad68008892144278f84426d5daa811af0f92d3ade85c6e9a432caa84a2b8cc04ceaa333633ed
ripemd-160	f2edc9b2cce695bfbc6d31c4c614b796e2c141ff

81642009 as geometric shapes

Circle

Radius = n

Diameter	163284018
Circumference	512971871.39742
Area	2.0940027070688E+16

Sphere

Radius = n

Volume	2.2794478380871E+24
Surface area	8.3760108282751E+16
Circumference	512971871.39742

Square

Length = n

Perimeter	326568036
Area	6665417633556081
Diagonal	115459236.38719

Cube

Length = n

Surface area	39992505801336486
Volume	5.4417808642754E+23
Space diagonal	141408107.62

Equilateral Triangle

Length = n

Perimeter	244926027
Area	2.8862104987462E+15
Altitude	70704053.809998

Triangular Pyramid

Length = n

Surface area	2.8862104987462E+15
Volume	6.4132002514339E+22
Height	38486412.129062