81749574 (number)

81749574 is an even 8-digits composite number following 81749573 and preceding 81749575. In scientific notation, it is written as 8.1749574 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 26778600 positive integers (up to 81749574) that are relatively prime to 81749574.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred forty-nine thousand five hundred seventy-four

Notation

Scientific notation 8.1749574 × 10^7
Engineering notation 8.1749574 × 10^6

Prime Factorization of 81749574

Prime Factorization 2 × 177 × 81 × 2851

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81749574
Product of the distinct prime numbers

The prime factorization of 81749574 is 2 × 177 × 81 × 2851. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81749574)

Multiplication

n×y
n×2 163499148
n×3 245248722
n×4 326998296
n×5 408747870

Division

n÷y
n÷2 40874787
n÷3 27249858
n÷3 20437393.5
n÷5 16349914.8

Exponentiation

ny
n2 6682992849181476
n3 5.4633181846563E+23
n4 4.4662393422211E+31
n5 3.6511316360861E+39

Nth Root

y√n
2√n 9041.547102128
3√n 434.00543290643
4√n 95.087050128438
5√n 38.23816999825

Divisors of 81749574

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 -81749573
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 81749574 can be divided by 16 positive divisors. The sum of these divisors (counting 81749574) is 1, the average is 0.0625.

Base conversion 81749574

Base System Value
2 Binary 100110111110110011001000110
3 Ternary 12200211022100000
4 Quaternary 10313312121012
5 Quinary 131411441244
6 Senary 12040102130
8 Octal 467663106
10 Decimal 81749574
12 Duodecimal 23464946
16 Hexadecimal 4df6646
20 Vigesimal 15aidie
36 Base36 1co6di

Cryptographic Hash Functions

md5 95bc43b6b8e762561f45262c56e43674
sha1 7166ab274f603e9ca608a11fb59eda602dec2409
sha256 7e7373fa2af155edb2344225a6caf05e0813e04db37eda0630a6bc6a88cdc293
sha512 897506666f87c1eaae75ad19e00ef1a5c21538fb777786ccb61c6b1c6c24c5651b69be6e58692ae1d48efc04ab2e0560f891a3dbf21dc4ec8cef1057ad48a5fd
ripemd-160 d01f05a688c0091e5b2b0a579419bbb43ea430a7

81749574 as geometric shapes

Circle

Radius = n
Diameter 163499148
Circumference 513647722.22499
Area 2.0995241238982E+16

Sphere

Radius = n
Volume 2.288469369752E+24
Surface area 8.3980964955927E+16
Circumference 513647722.22499

Square

Length = n
Perimeter 326998296
Area 6682992849181476
Diagonal 115611356.26902

Cube

Length = n
Surface area 40097957095088856
Volume 5.4633181846563E+23
Space diagonal 141594415.66511

Equilateral Triangle

Length = n
Perimeter 245248722
Area 2.8938207903505E+15
Altitude 70797207.832556

Triangular Pyramid

Length = n
Surface area 2.8938207903505E+15
Volume 6.4385822269171E+22
Height 38537118.756341