81749295 (number)

81749295 is an odd 8-digits composite number following 81749294 and preceding 81749296. In scientific notation, it is written as 8.1749295 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 43599600 positive integers (up to 81749295) that are relatively prime to 81749295.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred forty-nine thousand two hundred ninety-five

Notation

Scientific notation 8.1749295 × 10^7
Engineering notation 8.1749295 × 10^6

Prime Factorization of 81749295

Prime Factorization 15 × 3 × 1816651

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81749295
Product of the distinct prime numbers

The prime factorization of 81749295 is 15 × 3 × 1816651. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81749295)

Multiplication

n×y
n×2 163498590
n×3 245247885
n×4 326997180
n×5 408746475

Division

n÷y
n÷2 40874647.5
n÷3 27249765
n÷3 20437323.75
n÷5 16349859

Exponentiation

ny
n2 6682947232997025
n3 5.4632622481971E+23
n4 4.4661783719023E+31
n5 3.6510693324726E+39

Nth Root

y√n
2√n 9041.5316733394
3√n 434.00493917234
4√n 95.086968998593
5√n 38.238143897896

Divisors of 81749295

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81749294
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81749295 can be divided by 8 positive divisors. The sum of these divisors (counting 81749295) is 1, the average is 0.125.

Base conversion 81749295

Base System Value
2 Binary 100110111110110010100101111
3 Ternary 12200211021221200
4 Quaternary 10313312110233
5 Quinary 131411434140
6 Senary 12040100543
8 Octal 467662457
10 Decimal 81749295
12 Duodecimal 23464753
16 Hexadecimal 4df652f
20 Vigesimal 15aid4f
36 Base36 1co65r

Cryptographic Hash Functions

md5 a28249fe9ad06d2fd525f1e5ec11a53f
sha1 2d4ec9f5db91ba161869bda42286b01cf393e86f
sha256 a7f5eab63165b6723c478374699c80a6f51f1dc06fc674d5ae34461899c68c32
sha512 9e77cf29a3394155d4cf49dc1dee33f9e72e047c4fb72d704edb4b4a0ea91825cef9c294f1684fb9497596aa9f465f404c8bfb7679cf9bfff11bc1f7c8ffe13b
ripemd-160 fa8077afbb5468160483e677437b0fc1acc05ab7

81749295 as geometric shapes

Circle

Radius = n
Diameter 163498590
Circumference 513645969.21629
Area 2.0995097931512E+16

Sphere

Radius = n
Volume 2.2884459391427E+24
Surface area 8.3980391726047E+16
Circumference 513645969.21629

Square

Length = n
Perimeter 326997180
Area 6682947232997025
Diagonal 115610961.70344

Cube

Length = n
Surface area 40097683397982150
Volume 5.4632622481971E+23
Space diagonal 141593932.42294

Equilateral Triangle

Length = n
Perimeter 245247885
Area 2.8938010379632E+15
Altitude 70796966.211468

Triangular Pyramid

Length = n
Surface area 2.8938010379632E+15
Volume 6.4385163051677E+22
Height 38536987.23448