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

81220005 (number)

81220005 is an odd 8-digits composite number following 81220004 and preceding 81220006. In scientific notation, it is written as 8.1220005 × 10^7. The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors. There are 43186176 positive integers (up to 81220005) that are relatively prime to 81220005.

Interesting facts

81220005 has 8 divisors, whose sum is 83276376
The reverse of 81220005 is 50002218
Previous prime number is 353

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9

Name

Name	eighty-one million two hundred twenty thousand five

Notation

Scientific notation	8.1220005 × 10^7
Engineering notation	8.1220005 × 10^6

Prime Factorization of 81220005

Prime Factorization 45 × 353 × 5113

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81220005	Product of the distinct prime numbers

The prime factorization of 81220005 is 45 × 353 × 5113. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 7, 36, 53, 346, 775, 4206, 9002, 4944, 79116, 225434, 952950, 6391243, 2781456, 88376972, 19072479, 294023101, 116241040, 4990555833, 8843356040

Basic calculations (n = 81220005)

Multiplication

n×y

n×2	162440010
n×3	243660015
n×4	324880020
n×5	406100025

Division

n÷y

n÷2	40610002.5
n÷3	27073335
n÷3	20305001.25
n÷5	16244001

Exponentiation

n^y

n²	6596689212200025
n³	5.3578313079833E+23
n⁴	4.3516308562356E+31
n⁵	3.5343947990161E+39

Nth Root

^y√n

²√n	9012.214211835
³√n	433.06624797306
⁴√n	94.932682527331
⁵√n	38.188500198137

Divisors of 81220005

1, 45, 353, 5113, 15885, 230085, 1804889, 81220005

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	-81220004	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 81220005 can be divided by 8 positive divisors. The sum of these divisors (counting 81220005) is 1, the average is 0.125.

Base conversion 81220005

Base	System	Value
2	Binary	100110101110101000110100101
3	Ternary	12122211101220100
4	Quaternary	10311311012211
5	Quinary	131243020010
6	Senary	12020454313
8	Octal	465650645
10	Decimal	81220005
12	Duodecimal	2324a399
16	Hexadecimal	4d751a5
20	Vigesimal	157ca05
36	Base36	1cctr9

Cryptographic Hash Functions

md5	38cb29d2ec0acf463e349720d7fd613e
sha1	0dc3f183ecbd0b8f873ba64014f7a0a745605456
sha256	c4b92c96e4c61432bfff7463997856d914da2cd2e767cafe323e3810a1e1462c
sha512	1c23ae7076ff7a56e9db2bb7f4d63e4b53e6c2b8f32541fc9a01464fa3ff9abf3e1c84f68b358ae9f46eec34e84c08e8cbb76e9a588755d6291bcc36c7dcd478
ripemd-160	a4072e63abbd6b8b1c9ffe0454e2ec1bad32f514

81220005 as geometric shapes

Circle

Radius = n

Diameter	162440010
Circumference	510320342.06505
Area	2.0724110367063E+16

Sphere

Radius = n

Volume	2.2442831301778E+24
Surface area	8.2896441468251E+16
Circumference	510320342.06505

Square

Length = n

Perimeter	324880020
Area	6596689212200025
Diagonal	114862432.60701

Cube

Length = n

Surface area	39580135273200150
Volume	5.3578313079833E+23
Space diagonal	140677175.251

Equilateral Triangle

Length = n

Perimeter	243660015
Area	2.856450219318E+15
Altitude	70338587.625499

Triangular Pyramid

Length = n

Surface area	2.856450219318E+15
Volume	6.3142647505477E+22
Height	38287477.53567