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

81344981 (number)

81344981 is an odd 8-digits composite number following 81344980 and preceding 81344982. In scientific notation, it is written as 8.1344981 × 10^7. The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors. There are 79146432 positive integers (up to 81344981) that are relatively prime to 81344981.

Interesting facts

81344981 has 4 divisors, whose sum is 83543532
The reverse of 81344981 is 18944318
Previous prime number is 37

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2

Name

Name	eighty-one million three hundred forty-four thousand nine hundred eighty-one

Notation

Scientific notation	8.1344981 × 10^7
Engineering notation	8.1344981 × 10^6

Prime Factorization of 81344981

Prime Factorization 37 × 2198513

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81344981	Product of the distinct prime numbers

The prime factorization of 81344981 is 37 × 2198513. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 5, 23, 25, 208, 555, 1250, 7097, 62127, 37458, 617291, 617976, 4208116, 423239, 66499002, 9478257, 412403910, 195647511, 9093385328, 6344418943

Basic calculations (n = 81344981)

Multiplication

n×y

n×2	162689962
n×3	244034943
n×4	325379924
n×5	406724905

Division

n÷y

n÷2	40672490.5
n÷3	27114993.666667
n÷3	20336245.25
n÷5	16268996.2

Exponentiation

n^y

n²	6617005933890361
n³	5.382602219692E+23
n⁴	4.378476752914E+31
n⁵	3.5616710827473E+39

Nth Root

^y√n

²√n	9019.1452477494
³√n	433.28825875669
⁴√n	94.969180515309
⁵√n	38.200245361601

Divisors of 81344981

1, 37, 2198513, 81344981

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	-81344980	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 81344981 can be divided by 4 positive divisors. The sum of these divisors (counting 81344981) is 1, the average is 0.25.

Base conversion 81344981

Base	System	Value
2	Binary	100110110010011100111010101
3	Ternary	12200001202100002
4	Quaternary	10312103213111
5	Quinary	131311014411
6	Senary	12023301045
8	Octal	466234725
10	Decimal	81344981
12	Duodecimal	232aa785
16	Hexadecimal	4d939d5
20	Vigesimal	1588291
36	Base36	1cfi6t

Cryptographic Hash Functions

md5	be4db6c8f9831bfd3a3cd99544a42574
sha1	071c5e456ac5b976c96ad746545f26031a25c747
sha256	10c5e4108520d7864aa768031f506f58776684cfb437dbf697e0289bd96372a0
sha512	3dfdaac00a1c24470cb1b5364074deea0e3b37d7feec3297b2e7508c20f6206f5058be214293a9ef8b7bd106fc6751c5ee8b4341a482d625b12d865df95b3d22
ripemd-160	e62cea2384fa13440f73077c631c107832dac25d

81344981 as geometric shapes

Circle

Radius = n

Diameter	162689962
Circumference	511105589.432
Area	2.078793723067E+16

Sphere

Radius = n

Volume	2.2546591454107E+24
Surface area	8.315174892268E+16
Circumference	511105589.432

Square

Length = n

Perimeter	325379924
Area	6617005933890361
Diagonal	115039175.36118

Cube

Length = n

Surface area	39702035603342166
Volume	5.382602219692E+23
Space diagonal	140893640.03272

Equilateral Triangle

Length = n

Perimeter	244034943
Area	2.8652476178707E+15
Altitude	70446820.016362

Triangular Pyramid

Length = n

Surface area	2.8652476178707E+15
Volume	6.3434575499566E+22
Height	38346391.787061