81720170 (number)

81720170 is an even 8-digits composite number following 81720169 and preceding 81720171. In scientific notation, it is written as 8.1720170 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors. There are 27488448 positive integers (up to 81720170) that are relatively prime to 81720170.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred twenty thousand one hundred seventy

Notation

Scientific notation 8.1720170 × 10^7
Engineering notation 8.1720170 × 10^6

Prime Factorization of 81720170

Prime Factorization 2 × 5 × 371 × 22027

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81720170
Product of the distinct prime numbers

The prime factorization of 81720170 is 2 × 5 × 371 × 22027. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 6, 55, 18, 834, 246, 5596, 667, 92599, 2487, 961171, 977567, 8033106, 7801775, 52191480, 59180195, 367787861, 781450154, 7587216794, 8035171143

Basic calculations (n = 81720170)

Multiplication

n×y
n×2 163440340
n×3 245160510
n×4 326880680
n×5 408600850

Division

n÷y
n÷2 40860085
n÷3 27240056.666667
n÷3 20430042.5
n÷5 16344034

Exponentiation

ny
n2 6678186184828900
n3 5.4574251031587E+23
n4 4.459817071924E+31
n5 3.6445700928653E+39

Nth Root

y√n
2√n 9039.9209067336
3√n 433.95339175414
4√n 95.078498656287
5√n 38.235418872108

Divisors of 81720170

1, 2, 5, 10, 371, 742, 1855, 3710, 22027, 44054, 110135, 220270, 8172017, 16344034, 40860085, 81720170

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 -81720169
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 81720170 can be divided by 16 positive divisors. The sum of these divisors (counting 81720170) is 1, the average is 0.0625.

Base conversion 81720170

Base System Value
2 Binary 100110111101111001101101010
3 Ternary 12200202210222222
4 Quaternary 10313233031222
5 Quinary 131410021140
6 Senary 12035314042
8 Octal 467571552
10 Decimal 81720170
12 Duodecimal 2344b922
16 Hexadecimal 4def36a
20 Vigesimal 15af08a
36 Base36 1cnjoq

Cryptographic Hash Functions

md5 d1a7e2c6b7490808fe387d3e3438905a
sha1 df372874571a25d1f75a18815e86eeebccdc65cf
sha256 8669437adf406599ce278a20d8796b06b5216787356e6c9b0984ec41e8cf4da8
sha512 fa3ec4929cbc9826ade7235d86ee668ec53058f3d50a312a9fc3e5bbe4e5a71920135f77f9f2fb52e8796e22db963baee2820cc7cbadc81931178b5d25a5eb3b
ripemd-160 3e73c1019da1f55de8495f57e32d38cbec1b579e

81720170 as geometric shapes

Circle

Radius = n
Diameter 163440340
Circumference 513462971.44422
Area 2.0980140657563E+16

Sphere

Radius = n
Volume 2.2860008815466E+24
Surface area 8.3920562630253E+16
Circumference 513462971.44422

Square

Length = n
Perimeter 326880680
Area 6678186184828900
Diagonal 115569772.73343

Cube

Length = n
Surface area 40069117108973400
Volume 5.4574251031587E+23
Space diagonal 141543486.44317

Equilateral Triangle

Length = n
Perimeter 245160510
Area 2.8917394436321E+15
Altitude 70771743.221583

Triangular Pyramid

Length = n
Surface area 2.8917394436321E+15
Volume 6.4316371637687E+22
Height 38523257.577812