81953742 (number)

81953742 is an even 8-digits composite number following 81953741 and preceding 81953743. In scientific notation, it is written as 8.1953742 × 10^7. The sum of its digits is 39. It has a total of 6 prime factors and 64 positive divisors. There are 24136704 positive integers (up to 81953742) that are relatively prime to 81953742.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred fifty-three thousand seven hundred forty-two

Notation

Scientific notation 8.1953742 × 10^7
Engineering notation 8.1953742 × 10^6

Prime Factorization of 81953742

Prime Factorization 2 × 13 × 3 × 37 × 73 × 389

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 81953742
Product of the distinct prime numbers

The prime factorization of 81953742 is 2 × 13 × 3 × 37 × 73 × 389. Since it has a total of 6 prime factors.

Most popular turbo-numbers

9, 2, 53, 25, 87, 710, 6971, 1107, 18004, 5476, 443531, 154095, 6926669, 5485138, 58047611, 75956233, 215731466, 660027061, 9693796345, 9286184015

Basic calculations (n = 81953742)

Multiplication

n×y
n×2 163907484
n×3 245861226
n×4 327814968
n×5 409768710

Division

n÷y
n÷2 40976871
n÷3 27317914
n÷3 20488435.5
n÷5 16390748.4

Exponentiation

ny
n2 6716415827802564
n3 5.5043540991645E+23
n4 4.5110241571957E+31
n5 3.6969530993458E+39

Nth Root

y√n
2√n 9052.8306070532
3√n 434.36643929784
4√n 95.146364129447
5√n 38.257250766095

Divisors of 81953742

1, 2, 3, 6, 13, 26, 37, 39, 73, 74, 78, 111, 146, 219, 222, 389, 438, 481, 778, 949, 962, 1167, 1443, 1898, 2334, 2701, 2847, 2886, 5057, 5402, 5694, 8103, 10114, 14393, 15171, 16206, 28397, 28786, 30342, 35113, 43179, 56794, 70226, 85191, 86358, 105339, 170382, 187109, 210678, 369161, 374218, 561327, 738322, 1050689, 1107483, 1122654, 2101378, 2214966, 3152067, 6304134, 13658957, 27317914, 40976871, 81953742

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81953741
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81953742 can be divided by 64 positive divisors. The sum of these divisors (counting 81953742) is 1, the average is 0.015625.

Base conversion 81953742

Base System Value
2 Binary 100111000101000001111001110
3 Ternary 12201012200101210
4 Quaternary 10320220033032
5 Quinary 131440004432
6 Senary 12044315250
8 Octal 470501716
10 Decimal 81953742
12 Duodecimal 23542b26
16 Hexadecimal 4e283ce
20 Vigesimal 15c4472
36 Base36 1csjwu

Cryptographic Hash Functions

md5 a3b3781ace9051739abdfb160440aa99
sha1 256da7b867691fc70eabc922bb99cb6a80c096ca
sha256 e84d650af88735a690e7d4ef7ae77d40a9049929eec240cdce294eebe258a7e1
sha512 f3cf2317336e46cdff9664c456b1b4bc672f3a0b769fda00de8249792fac928c9f3d514f945eb61a79a922a51dc41ceb390d6c099d6d488b308fb0d95963b92f
ripemd-160 216275d0f6753ee67debe2872a1cf1b18f526d5b

81953742 as geometric shapes

Circle

Radius = n
Diameter 163907484
Circumference 514930547.60279
Area 2.1100242623079E+16

Sphere

Radius = n
Volume 2.3056584534256E+24
Surface area 8.4400970492315E+16
Circumference 514930547.60279

Square

Length = n
Perimeter 327814968
Area 6716415827802564
Diagonal 115900093.42363

Cube

Length = n
Surface area 40298494966815384
Volume 5.5043540991645E+23
Space diagonal 141948045.01439

Equilateral Triangle

Length = n
Perimeter 245861226
Area 2.9082933646285E+15
Altitude 70974022.507196

Triangular Pyramid

Length = n
Surface area 2.9082933646285E+15
Volume 6.486943515952E+22
Height 38633364.474542