81736985 (number)

81736985 is an odd 8-digits composite number following 81736984 and preceding 81736986. In scientific notation, it is written as 8.1736985 × 10^7. The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors. There are 57024000 positive integers (up to 81736985) that are relatively prime to 81736985.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred thirty-six thousand nine hundred eighty-five

Notation

Scientific notation 8.1736985 × 10^7
Engineering notation 8.1736985 × 10^6

Prime Factorization of 81736985

Prime Factorization 5 × 451 × 541 × 67

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81736985
Product of the distinct prime numbers

The prime factorization of 81736985 is 5 × 451 × 541 × 67. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 10, 81, 35, 141, 542, 7067, 2835, 1726, 12542, 90764, 317613, 7501834, 8858821, 61683977, 91721685, 480784794, 583298399, 550963463, 1801198875

Basic calculations (n = 81736985)

Multiplication

n×y
n×2 163473970
n×3 245210955
n×4 326947940
n×5 408684925

Division

n÷y
n÷2 40868492.5
n÷3 27245661.666667
n÷3 20434246.25
n÷5 16347397

Exponentiation

ny
n2 6680934716890225
n3 5.4607946074044E+23
n4 4.4634888691349E+31
n5 3.6483212274415E+39

Nth Root

y√n
2√n 9040.8509002195
3√n 433.98315358593
4√n 95.083389191906
5√n 38.236992230701

Divisors of 81736985

1, 5, 67, 335, 451, 541, 2255, 2705, 30217, 36247, 151085, 181235, 243991, 1219955, 16347397, 81736985

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 -81736984
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 81736985 can be divided by 16 positive divisors. The sum of these divisors (counting 81736985) is 1, the average is 0.0625.

Base conversion 81736985

Base System Value
2 Binary 100110111110011010100011001
3 Ternary 12200210200001202
4 Quaternary 10313303110121
5 Quinary 131411040420
6 Senary 12035523545
8 Octal 467632431
10 Decimal 81736985
12 Duodecimal 234595b5
16 Hexadecimal 4df3519
20 Vigesimal 15ah295
36 Base36 1cnwnt

Cryptographic Hash Functions

md5 09bb47edb071fcbecb2d61dbf1548def
sha1 19a6644ba2acd573607c38a8e3c7064043781488
sha256 2f2cbd0d6a002c8b4c498d219f72e8b079044a5b44ffdf1d59492cd545ed3fa4
sha512 cd18f1901fba88eb628f538719b420db77c3bd958d2afb3e5bf3a9f37828670243c22c8f8f47329098050306061b6fd0dadad1c39e747ac3f6ab297e1c65ca72
ripemd-160 424304952811f286dde8520655e825b43e4c5f97

81736985 as geometric shapes

Circle

Radius = n
Diameter 163473970
Circumference 513568623.20516
Area 2.0988775425695E+16

Sphere

Radius = n
Volume 2.2874122961846E+24
Surface area 8.3955101702781E+16
Circumference 513568623.20516

Square

Length = n
Perimeter 326947940
Area 6680934716890225
Diagonal 115593552.73449

Cube

Length = n
Surface area 40085608301341350
Volume 5.4607946074044E+23
Space diagonal 141572610.8775

Equilateral Triangle

Length = n
Perimeter 245210955
Area 2.8929295929262E+15
Altitude 70786305.438748

Triangular Pyramid

Length = n
Surface area 2.8929295929262E+15
Volume 6.4356081626043E+22
Height 38531184.244829