81749863 (number)

81749863 is an odd 8-digits composite number following 81749862 and preceding 81749864. In scientific notation, it is written as 8.1749863 × 10^7. The sum of its digits is 46. It has a total of 3 prime factors and 6 positive divisors. There are 75461256 positive integers (up to 81749863) that are relatively prime to 81749863.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred forty-nine thousand eight hundred sixty-three

Notation

Scientific notation 8.1749863 × 10^7
Engineering notation 8.1749863 × 10^6

Prime Factorization of 81749863

Prime Factorization 13 × 13 × 483727

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 6288451
Product of the distinct prime numbers

The prime factorization of 81749863 is 13 × 13 × 483727. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 4, 14, 97, 706, 976, 6200, 7428, 25873, 4915, 461037, 833231, 2293613, 123484, 62317606, 42130762, 905643374, 551610834, 2829071199, 9803848778

Basic calculations (n = 81749863)

Multiplication

n×y
n×2 163499726
n×3 245249589
n×4 326999452
n×5 408749315

Division

n÷y
n÷2 40874931.5
n÷3 27249954.333333
n÷3 20437465.75
n÷5 16349972.6

Exponentiation

ny
n2 6683040100518769
n3 5.4633761264092E+23
n4 4.4663024985142E+31
n5 3.6511961737009E+39

Nth Root

y√n
2√n 9041.5630838921
3√n 434.00594433589
4√n 95.087134165943
5√n 38.238197034025

Divisors of 81749863

1, 13, 169, 483727, 6288451, 81749863

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81749862
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81749863 can be divided by 6 positive divisors. The sum of these divisors (counting 81749863) is 1, the average is 0.16666666666667.

Base conversion 81749863

Base System Value
2 Binary 100110111110110011101100111
3 Ternary 12200211022201201
4 Quaternary 10313312131213
5 Quinary 131411443423
6 Senary 12040103331
8 Octal 467663547
10 Decimal 81749863
12 Duodecimal 23464b47
16 Hexadecimal 4df6767
20 Vigesimal 15aied3
36 Base36 1co6lj

Cryptographic Hash Functions

md5 1a0065a3859cfe9a05783ec2cb20d0eb
sha1 16c471ef9d9dd41e6bb237e04c70a234efddd14a
sha256 e6d9827054c51c6ddd985e0165a0c0cd4a48130d9f986d4b2724fcdcccc2eee7
sha512 d6e06e453273c7b806993fabc8bed0a2c6f8f50212f5f937f9e1ee457c57ab6ccf4b0515027322b5306cec807987875021eeec79c4014c38a665a59ab5f669cd
ripemd-160 17f271feb76cdb2f95247c8e9671a3e5dabec85a

81749863 as geometric shapes

Circle

Radius = n
Diameter 163499726
Circumference 513649538.06554
Area 2.0995389683436E+16

Sphere

Radius = n
Volume 2.2884936403366E+24
Surface area 8.3981558733743E+16
Circumference 513649538.06554

Square

Length = n
Perimeter 326999452
Area 6683040100518769
Diagonal 115611764.97674

Cube

Length = n
Surface area 40098240603112614
Volume 5.4633761264092E+23
Space diagonal 141594916.2278

Equilateral Triangle

Length = n
Perimeter 245249589
Area 2.8938412507797E+15
Altitude 70797458.113898

Triangular Pyramid

Length = n
Surface area 2.8938412507797E+15
Volume 6.4386505119277E+22
Height 38537254.992247