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

81342644 (number)

81342644 is an even 8-digits composite number following 81342643 and preceding 81342645. In scientific notation, it is written as 8.1342644 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors. There are 40671320 positive integers (up to 81342644) that are relatively prime to 81342644.

Interesting facts

81342644 has 6 divisors, whose sum is 142349634
The reverse of 81342644 is 44624318
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	eighty-one million three hundred forty-two thousand six hundred forty-four

Notation

Scientific notation	8.1342644 × 10^7
Engineering notation	8.1342644 × 10^6

Prime Factorization of 81342644

Prime Factorization 2 × 2 × 20335661

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	40671322	Product of the distinct prime numbers

The prime factorization of 81342644 is 2 × 2 × 20335661. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 10, 80, 28, 549, 737, 7351, 9520, 91406, 88916, 987548, 617502, 8857687, 7914667, 27385409, 42100047, 110488843, 896335779, 1983219685, 7102787098

Basic calculations (n = 81342644)

Multiplication

n×y

n×2	162685288
n×3	244027932
n×4	325370576
n×5	406713220

Division

n÷y

n÷2	40671322
n÷3	27114214.666667
n÷3	20335661
n÷5	16268528.8

Exponentiation

n^y

n²	6616625732910736
n³	5.382138314734E+23
n⁴	4.3779736089417E+31
n⁵	3.5611594871354E+39

Nth Root

^y√n

²√n	9019.0156890871
³√n	433.28410933306
⁴√n	94.968498403877
⁵√n	38.200025864348

Divisors of 81342644

1, 2, 4, 20335661, 40671322, 81342644

6 divisors

τ	Total Divisors	6	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81342643	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.16666666666667	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	6	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81342644 can be divided by 6 positive divisors. The sum of these divisors (counting 81342644) is 1, the average is 0.16666666666667.

Base conversion 81342644

Base	System	Value
2	Binary	100110110010011000010110100
3	Ternary	12200001122010112
4	Quaternary	10312103002310
5	Quinary	131310431034
6	Senary	12023242152
8	Octal	466230264
10	Decimal	81342644
12	Duodecimal	232a9358
16	Hexadecimal	4d930b4
20	Vigesimal	1587gc4
36	Base36	1cfgdw

Cryptographic Hash Functions

md5	70540079f9eccb52775cea3073000473
sha1	684a9ccb0ba37e70fc2b1714c134e1f9568be046
sha256	730988160d0ed5c4467884a54600db4cbffbe0ac32c66c251fbb35b7af90f313
sha512	7d1443a5a0271c28b61c61a48973b62782211cb6f70db04cd3d52cb9e48b7275fd5730ef7be9ed730dcf882e1c4a0773a3f561349013e0c9dc02cf27968b2414
ripemd-160	6c6001211639090a0050e0b76857c0039b9659a8

81342644 as geometric shapes

Circle

Radius = n

Diameter	162685288
Circumference	511090905.62794
Area	2.0786742794066E+16

Sphere

Radius = n

Volume	2.2544648253563E+24
Surface area	8.3146971176262E+16
Circumference	511090905.62794

Square

Length = n

Perimeter	325370576
Area	6616625732910736
Diagonal	115035870.34409

Cube

Length = n

Surface area	39699754397464416
Volume	5.382138314734E+23
Space diagonal	140889592.22999

Equilateral Triangle

Length = n

Perimeter	244027932
Area	2.8650829860173E+15
Altitude	70444796.114994

Triangular Pyramid

Length = n

Surface area	2.8650829860173E+15
Volume	6.3429108327205E+22
Height	38345290.114695