81742018 (number)

81742018 is an even 8-digits composite number following 81742017 and preceding 81742019. In scientific notation, it is written as 8.1742018 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 38396736 positive integers (up to 81742018) that are relatively prime to 81742018.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred forty-two thousand eighteen

Notation

Scientific notation 8.1742018 × 10^7
Engineering notation 8.1742018 × 10^6

Prime Factorization of 81742018

Prime Factorization 2 × 17 × 643 × 3739

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81742018
Product of the distinct prime numbers

The prime factorization of 81742018 is 2 × 17 × 643 × 3739. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 2, 15, 33, 350, 473, 1319, 1611, 46464, 38903, 961933, 713104, 5370307, 6347509, 1022468, 31591737, 958741629, 576285380, 6754060902, 8822841202

Basic calculations (n = 81742018)

Multiplication

n×y
n×2 163484036
n×3 245226054
n×4 326968072
n×5 408710090

Division

n÷y
n÷2 40871009
n÷3 27247339.333333
n÷3 20435504.5
n÷5 16348403.6

Exponentiation

ny
n2 6681757506712324
n3 5.4618034238531E+23
n4 4.4645883378506E+31
n5 3.6494446027518E+39

Nth Root

y√n
2√n 9041.1292436288
3√n 433.99206098724
4√n 95.084852861162
5√n 38.237463111887

Divisors of 81742018

1, 2, 17, 34, 643, 1286, 3739, 7478, 10931, 21862, 63563, 127126, 2404177, 4808354, 40871009, 81742018

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 -81742017
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 81742018 can be divided by 16 positive divisors. The sum of these divisors (counting 81742018) is 1, the average is 0.0625.

Base conversion 81742018

Base System Value
2 Binary 100110111110100100011000010
3 Ternary 12200210220222011
4 Quaternary 10313310203002
5 Quinary 131411221033
6 Senary 12040003134
8 Octal 467644302
10 Decimal 81742018
12 Duodecimal 234604aa
16 Hexadecimal 4df48c2
20 Vigesimal 15ahf0i
36 Base36 1co0jm

Cryptographic Hash Functions

md5 eb855935d7036b9834049b0f5a97d680
sha1 c130c39b5486ac95e39f32875093a5ae03cd450b
sha256 20b77ca02b8fd7a6b1f8e5e88821b32d62b9f335894b0b3b30b5d26b57022356
sha512 dff4f62f988a3e90ea102784156858079d6adda9fe785e307ba5e9bbefd8db8658de56949f95298d7522d3142f2d8cd79ab89198a24cd3bafe16be704397e072
ripemd-160 97291b189c7378a865bd28b4f6a380b99ad46092

81742018 as geometric shapes

Circle

Radius = n
Diameter 163484036
Circumference 513600246.47681
Area 2.0991360296156E+16

Sphere

Radius = n
Volume 2.2878348682305E+24
Surface area 8.3965441184624E+16
Circumference 513600246.47681

Square

Length = n
Perimeter 326968072
Area 6681757506712324
Diagonal 115600670.47135

Cube

Length = n
Surface area 40090545040273944
Volume 5.4618034238531E+23
Space diagonal 141581328.28921

Equilateral Triangle

Length = n
Perimeter 245226054
Area 2.8932858713701E+15
Altitude 70790664.144605

Triangular Pyramid

Length = n
Surface area 2.8932858713701E+15
Volume 6.4367970641908E+22
Height 38533556.823782