81749654 (number)

81749654 is an even 8-digits composite number following 81749653 and preceding 81749655. In scientific notation, it is written as 8.1749654 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors. There are 34180800 positive integers (up to 81749654) that are relatively prime to 81749654.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred forty-nine thousand six hundred fifty-four

Notation

Scientific notation 8.1749654 × 10^7
Engineering notation 8.1749654 × 10^6

Prime Factorization of 81749654

Prime Factorization 2 × 7 × 41 × 142421

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81749654
Product of the distinct prime numbers

The prime factorization of 81749654 is 2 × 7 × 41 × 142421. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 5, 26, 15, 324, 406, 7782, 8468, 49228, 63644, 591980, 888320, 6281210, 4650030, 11767743, 64592618, 524761827, 662891843, 6744575123, 7366851265

Basic calculations (n = 81749654)

Multiplication

n×y
n×2 163499308
n×3 245248962
n×4 326998616
n×5 408748270

Division

n÷y
n÷2 40874827
n÷3 27249884.666667
n÷3 20437413.5
n÷5 16349930.8

Exponentiation

ny
n2 6683005929119716
n3 5.4633342238549E+23
n4 4.4662568248649E+31
n5 3.6511495010785E+39

Nth Root

y√n
2√n 9041.5515261486
3√n 434.00557447872
4√n 95.087073391437
5√n 38.238177482209

Divisors of 81749654

1, 2, 7, 14, 41, 82, 287, 574, 142421, 284842, 996947, 1993894, 5839261, 11678522, 40874827, 81749654

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 -81749653
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 81749654 can be divided by 16 positive divisors. The sum of these divisors (counting 81749654) is 1, the average is 0.0625.

Base conversion 81749654

Base System Value
2 Binary 100110111110110011010010110
3 Ternary 12200211022102222
4 Quaternary 10313312122112
5 Quinary 131411442104
6 Senary 12040102342
8 Octal 467663226
10 Decimal 81749654
12 Duodecimal 234649b2
16 Hexadecimal 4df6696
20 Vigesimal 15aie2e
36 Base36 1co6fq

Cryptographic Hash Functions

md5 9f731f17133721bd6c99d177192a88df
sha1 0cb11db2f2773c40338df453fd0af27e96f7a387
sha256 314e281f0fc10abf1a40edf455892ed6599a0d4730f976ad0e890b84ce45bf93
sha512 f66d5fd6aa13180fc6bb520fdf0c19c532ba8be8e90873a61539192ee474da49789572877fe0ec518112eaf791453f425366be341ceef682fc2e8d7c4924f7c3
ripemd-160 05e02df7b1766d607c772c7df3e98cbb7cd7d2f6

81749654 as geometric shapes

Circle

Radius = n
Diameter 163499308
Circumference 513648224.87981
Area 2.099528233082E+16

Sphere

Radius = n
Volume 2.2884760882357E+24
Surface area 8.3981129323278E+16
Circumference 513648224.87981

Square

Length = n
Perimeter 326998616
Area 6683005929119716
Diagonal 115611469.40611

Cube

Length = n
Surface area 40098035574718296
Volume 5.4633342238549E+23
Space diagonal 141594554.22918

Equilateral Triangle

Length = n
Perimeter 245248962
Area 2.8938264541298E+15
Altitude 70797277.114588

Triangular Pyramid

Length = n
Surface area 2.8938264541298E+15
Volume 6.4386011292939E+22
Height 38537156.468703