81749550 (number)

81749550 is an even 8-digits composite number following 81749549 and preceding 81749551. In scientific notation, it is written as 8.1749550 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 21047040 positive integers (up to 81749550) that are relatively prime to 81749550.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred forty-nine thousand five hundred fifty

Notation

Scientific notation 8.1749550 × 10^7
Engineering notation 8.1749550 × 10^6

Prime Factorization of 81749550

Prime Factorization 2 × 29 × 75 × 18793

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81749550
Product of the distinct prime numbers

The prime factorization of 81749550 is 2 × 29 × 75 × 18793. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 7, 44, 16, 719, 750, 9849, 9950, 41106, 59489, 463389, 260607, 1623988, 7977722, 84280797, 49432364, 425587736, 935118813, 8665953704, 9774001462

Basic calculations (n = 81749550)

Multiplication

n×y
n×2 163499100
n×3 245248650
n×4 326998200
n×5 408747750

Division

n÷y
n÷2 40874775
n÷3 27249850
n÷3 20437387.5
n÷5 16349910

Exponentiation

ny
n2 6682988925202500
n3 5.4633133729029E+23
n4 4.4662340974379E+31
n5 3.6511262766021E+39

Nth Root

y√n
2√n 9041.5457749215
3√n 434.00539043472
4√n 95.087043149535
5√n 38.238167753061

Divisors of 81749550

1, 2, 29, 58, 75, 150, 2175, 4350, 18793, 37586, 544997, 1089994, 1409475, 2818950, 40874775, 81749550

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81749549
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81749550 can be divided by 16 positive divisors. The sum of these divisors (counting 81749550) is 1, the average is 0.0625.

Base conversion 81749550

Base System Value
2 Binary 100110111110110011000101110
3 Ternary 12200211022022010
4 Quaternary 10313312120232
5 Quinary 131411441200
6 Senary 12040102050
8 Octal 467663056
10 Decimal 81749550
12 Duodecimal 23464926
16 Hexadecimal 4df662e
20 Vigesimal 15aidha
36 Base36 1co6cu

Cryptographic Hash Functions

md5 d0086f2650abdb067b80734000c3871c
sha1 c25f84a6cfa8a5be79b6c6aae6c5e335d6e96ca0
sha256 4a3996775b26babf35f0d57dc54a32cf6c41bac5d34d3c8e88efa5c1cecaf1a0
sha512 c04632465db833f129f0622cb046d3697892d7318d3a8dd44e4ea817a6accd896d63fdb05f38d8b9f164222a34ae01533d4486fe55aef934e6e9f09ff4e95338
ripemd-160 e56b1a9f2bf4d901262e58fa65b0fed80baf6543

81749550 as geometric shapes

Circle

Radius = n
Diameter 163499100
Circumference 513647571.42854
Area 2.0995228911438E+16

Sphere

Radius = n
Volume 2.2884673542094E+24
Surface area 8.3980915645752E+16
Circumference 513647571.42854

Square

Length = n
Perimeter 326998200
Area 6682988925202500
Diagonal 115611322.3279

Cube

Length = n
Surface area 40097933551215000
Volume 5.4633133729029E+23
Space diagonal 141594374.09589

Equilateral Triangle

Length = n
Perimeter 245248650
Area 2.8938190912177E+15
Altitude 70797187.047946

Triangular Pyramid

Length = n
Surface area 2.8938190912177E+15
Volume 6.4385765562113E+22
Height 38537107.442632