81353249 (number)

81353249 is an odd 8-digits composite number following 81353248 and preceding 81353250. In scientific notation, it is written as 8.1353249 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 81293700 positive integers (up to 81353249) that are relatively prime to 81353249.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred fifty-three thousand two hundred forty-nine

Notation

Scientific notation 8.1353249 × 10^7
Engineering notation 8.1353249 × 10^6

Prime Factorization of 81353249

Prime Factorization 1399 × 58151

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81353249
Product of the distinct prime numbers

The prime factorization of 81353249 is 1399 × 58151. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81353249)

Multiplication

n×y
n×2 162706498
n×3 244059747
n×4 325412996
n×5 406766245

Division

n÷y
n÷2 40676624.5
n÷3 27117749.666667
n÷3 20338312.25
n÷5 16270649.8

Exponentiation

ny
n2 6618351122856001
n3 5.3842436686713E+23
n4 4.3802571585409E+31
n5 3.5634815130281E+39

Nth Root

y√n
2√n 9019.6035943937
3√n 433.30293823624
4√n 94.971593618269
5√n 38.201021873648

Divisors of 81353249

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 -81353248
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 81353249 can be divided by 4 positive divisors. The sum of these divisors (counting 81353249) is 1, the average is 0.25.

Base conversion 81353249

Base System Value
2 Binary 100110110010101101000100001
3 Ternary 12200002011200022
4 Quaternary 10312111220201
5 Quinary 131311300444
6 Senary 12023403225
8 Octal 466255041
10 Decimal 81353249
12 Duodecimal 232b3515
16 Hexadecimal 4d95a21
20 Vigesimal 1589329
36 Base36 1cfokh

Cryptographic Hash Functions

md5 e61acd26552221cc49ba76897b30d366
sha1 79491e9808035641f4a93c0bd0de9b5340333f2d
sha256 202d8757275cd37a9f659609d29747bc4cc96aa5be142a3d678be5f505e4af87
sha512 04f53562ed18c8eb589e645311310637ec79622aa2f73bb45e05c025f6d161723ac8461a8c48795b14bd928e2b6992e04cd1be2c55b86140ae6675a0b641eb72
ripemd-160 cc29f8bdaf787315a6cfcc0b3825a71037bc45d3

81353249 as geometric shapes

Circle

Radius = n
Diameter 162706498
Circumference 511157538.80812
Area 2.0792163266442E+16

Sphere

Radius = n
Volume 2.2553467139514E+24
Surface area 8.3168653065769E+16
Circumference 511157538.80812

Square

Length = n
Perimeter 325412996
Area 6618351122856001
Diagonal 115050868.07892

Cube

Length = n
Surface area 39710106737136006
Volume 5.3842436686713E+23
Space diagonal 140907960.6288

Equilateral Triangle

Length = n
Perimeter 244059747
Area 2.8658301017793E+15
Altitude 70453980.314401

Triangular Pyramid

Length = n
Surface area 2.8658301017793E+15
Volume 6.3453920161304E+22
Height 38350289.359638