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

81330861 (number)

81330861 is an odd 8-digits composite number following 81330860 and preceding 81330862. In scientific notation, it is written as 8.1330861 × 10^7. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 54220572 positive integers (up to 81330861) that are relatively prime to 81330861.

Interesting facts

81330861 has 4 divisors, whose sum is 108441152
The reverse of 81330861 is 16803318
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 three hundred thirty thousand eight hundred sixty-one

Notation

Scientific notation	8.1330861 × 10^7
Engineering notation	8.1330861 × 10^6

Prime Factorization of 81330861

Prime Factorization 3 × 27110287

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81330861	Product of the distinct prime numbers

The prime factorization of 81330861 is 3 × 27110287. Since it has a total of 2 prime factors.

Most popular turbo-numbers

6, 6, 67, 35, 196, 434, 7955, 7078, 25568, 15448, 251960, 463893, 4810365, 490138, 22928124, 19074019, 347460312, 295564716, 3029720981, 6602514313

Basic calculations (n = 81330861)

Multiplication

n×y

n×2	162661722
n×3	243992583
n×4	325323444
n×5	406654305

Division

n÷y

n÷2	40665430.5
n÷3	27110287
n÷3	20332715.25
n÷5	16266172.2

Exponentiation

n^y

n²	6614708951001321
n³	5.3797997424934E+23
n⁴	4.3754374506457E+31
n⁵	3.5585809511266E+39

Nth Root

^y√n

²√n	9018.3624345
³√n	433.26318700194
⁴√n	94.965059019094
⁵√n	38.198919096814

Divisors of 81330861

1, 3, 27110287, 81330861

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	-81330860	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 81330861 can be divided by 4 positive divisors. The sum of these divisors (counting 81330861) is 1, the average is 0.25.

Base conversion 81330861

Base	System	Value
2	Binary	100110110010000001010101101
3	Ternary	12200001000222010
4	Quaternary	10312100022231
5	Quinary	131310041421
6	Senary	12023111433
8	Octal	466201255
10	Decimal	81330861
12	Duodecimal	232a2579
16	Hexadecimal	4d902ad
20	Vigesimal	1586731
36	Base36	1cf7al

Cryptographic Hash Functions

md5	73e9cf330b58ffa4ce6c441c4438252e
sha1	adcb373ea54eb3594de0a4427ba570d63bf32aec
sha256	baa2f67a4a784138378d58457e600a5849e487b50e78deaa019711ddabc957a0
sha512	1a9782a784de8b8d9c4cd50b42a792933b8907a3a427151c2e1dc9a4519ffccc894c2e7f04f21fe67d6b50a90447c51c19044e25ece8dabcbfd9b8657f6301c4
ripemd-160	9e86f4a41c983c27dae45a770ddb2aedf3d95d38

81330861 as geometric shapes

Circle

Radius = n

Diameter	162661722
Circumference	511016870.85547
Area	2.07807210461E+16

Sphere

Radius = n

Volume	2.2534852465069E+24
Surface area	8.3122884184402E+16
Circumference	511016870.85547

Square

Length = n

Perimeter	325323444
Area	6614708951001321
Diagonal	115019206.66568

Cube

Length = n

Surface area	39688253706007926
Volume	5.3797997424934E+23
Space diagonal	140869183.47532

Equilateral Triangle

Length = n

Perimeter	243992583
Area	2.8642529951037E+15
Altitude	70434591.737661

Triangular Pyramid

Length = n

Surface area	2.8642529951037E+15
Volume	6.3401547989046E+22
Height	38339735.555227