81640120 (number)

81640120 is an even 8-digits composite number following 81640119 and preceding 81640121. In scientific notation, it is written as 8.1640120 × 10^7. The sum of its digits is 22. It has a total of 7 prime factors and 64 positive divisors. There are 30535680 positive integers (up to 81640120) that are relatively prime to 81640120.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred forty thousand one hundred twenty

Notation

Scientific notation 8.1640120 × 10^7
Engineering notation 8.1640120 × 10^6

Prime Factorization of 81640120

Prime Factorization 2 × 2 × 2 × 5 × 17 × 211 × 569

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 20410030
Product of the distinct prime numbers

The prime factorization of 81640120 is 2 × 2 × 2 × 5 × 17 × 211 × 569. Since it has a total of 7 prime factors.

Most popular turbo-numbers

5, 9, 15, 11, 370, 526, 9123, 5461, 67019, 61218, 647140, 55034, 7602150, 1406225, 58406969, 90123112, 330972163, 646753775, 5391413083, 4460185308

Basic calculations (n = 81640120)

Multiplication

n×y
n×2 163280240
n×3 244920360
n×4 326560480
n×5 408200600

Division

n÷y
n÷2 40820060
n÷3 27213373.333333
n÷3 20410030
n÷5 16328024

Exponentiation

ny
n2 6665109193614400
n3 5.4414031437978E+23
n4 4.4423680562803E+31
n5 3.6267546119889E+39

Nth Root

y√n
2√n 9035.492238943
3√n 433.81165066437
4√n 95.055206269531
5√n 38.227925140114

Divisors of 81640120

1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 211, 340, 422, 569, 680, 844, 1055, 1138, 1688, 2110, 2276, 2845, 3587, 4220, 4552, 5690, 7174, 8440, 9673, 11380, 14348, 17935, 19346, 22760, 28696, 35870, 38692, 48365, 71740, 77384, 96730, 120059, 143480, 193460, 240118, 386920, 480236, 600295, 960472, 1200590, 2041003, 2401180, 4082006, 4802360, 8164012, 10205015, 16328024, 20410030, 40820060, 81640120

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 -81640119
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 81640120 can be divided by 64 positive divisors. The sum of these divisors (counting 81640120) is 1, the average is 0.015625.

Base conversion 81640120

Base System Value
2 Binary 100110111011011101010111000
3 Ternary 12200121202012011
4 Quaternary 10313123222320
5 Quinary 131344440440
6 Senary 12033455304
8 Octal 467335270
10 Decimal 81640120
12 Duodecimal 23411534
16 Hexadecimal 4ddbab8
20 Vigesimal 15a5060
36 Base36 1cltx4

Cryptographic Hash Functions

md5 bed3e8384b81981bafc82921725f0baf
sha1 ae3917d985192f05163247a4c928850518d5b964
sha256 39aff4833076b72319748966fb26e9526afe389a6ad93f50c28a5303905bebb3
sha512 a2560e3b084997ad469ad08072ed3641bd3dc713231711c816d307b9cfdd1873f1d99dd633f70b599a8c5ee8d0fec45f6079826b53ab6cbd09567b6eeea3a63f
ripemd-160 522353c9e8b7250fea1378874d806035e0f12db9

81640120 as geometric shapes

Circle

Radius = n
Diameter 163280240
Circumference 512960002.46038
Area 2.0939058078033E+16

Sphere

Radius = n
Volume 2.2792896189034E+24
Surface area 8.3756232312131E+16
Circumference 512960002.46038

Square

Length = n
Perimeter 326560480
Area 6665109193614400
Diagonal 115456564.93777

Cube

Length = n
Surface area 39990655161686400
Volume 5.4414031437978E+23
Space diagonal 141404835.77602

Equilateral Triangle

Length = n
Perimeter 244920360
Area 2.8860769403336E+15
Altitude 70702417.88801

Triangular Pyramid

Length = n
Surface area 2.8860769403336E+15
Volume 6.4127551035821E+22
Height 38485521.645922